S
sacrifice - v. to do without something or to suffer a loss for a belief， idea， goal or another person
sad - ad. not happy safe - ad. away from harm or danger
sail - v. to travel by boat or ship
sailor - n. a person involved in sailing a boat or ship
salt - n. a white substance found in sea water and in the ground， used to affect the taste of food
same - ad. not different; not changed; like another or others
sand - n. extremely small pieces of crushed rock found in large amounts in deserts and on coasts
satellite - n. a small object in space that moves around a larger object; an object placed in orbit around the earth
satisfy - v. to give or provide what is desired， needed or demanded
save - v. to make safe; to remove from harm; to keep for future use
say - v. to speak; to express in words
school - n. a place for education; a place where people go to learn
science - n. the study of nature and the actions of natural things， and the knowledge gained about them
sea - n. a large area of salt water， usually part of an ocean
search - v. to look for carefully
season - n. one of the four periods of the year that is based on the earth's position toward the sun (spring， summer， autumn， winter); a period of time based on different weather conditions ("dry season"， "rainy season"); a period during the year when something usually happens ("baseball season")
seat - n. a thing to sit on; a place to sit or the right to sit there ("a seat in parliament")
second - ad. the one that comes after the first
secret - n. something known only to a few and kept from general knowledge; ad. hidden from others; known only to a few
security - n. freedom from danger or harm; protection; measures necessary to protect a person or place ("Security was increased in the city.")
see - v. to know or sense through the eyes; to understand or know
seed - n. the part of a plant from which new plants grow
seek(ing) - v. to search for ("They are seeking a cure for cancer."); to try to get ("She is seeking election to public office."); to plan to do ("Electric power companies are seeking to reduce their use of coal.")
seem - v. to appear to be ("She seems to be in good health.")
seize - v. to take quickly by force; to take control of quickly; to arrest
self - n. all that which makes one person different from others
sell - v. to give something in exchange for money
Senate - n. the smaller of the two groups in the governments of some countries， such as in the United States Congress
send - v. to cause to go; to permit to go; to cause to be carried， taken or directed to or away from a place
sacrifice - v. to do without something or to suffer a loss for a belief， idea， goal or another person
sad - ad. not happy safe - ad. away from harm or danger
sail - v. to travel by boat or ship
sailor - n. a person involved in sailing a boat or ship
salt - n. a white substance found in sea water and in the ground， used to affect the taste of food
same - ad. not different; not changed; like another or others
sand - n. extremely small pieces of crushed rock found in large amounts in deserts and on coasts
satellite - n. a small object in space that moves around a larger object; an object placed in orbit around the earth
satisfy - v. to give or provide what is desired， needed or demanded
save - v. to make safe; to remove from harm; to keep for future use
say - v. to speak; to express in words
school - n. a place for education; a place where people go to learn
science - n. the study of nature and the actions of natural things， and the knowledge gained about them
sea - n. a large area of salt water， usually part of an ocean
search - v. to look for carefully
season - n. one of the four periods of the year that is based on the earth's position toward the sun (spring， summer， autumn， winter); a period of time based on different weather conditions ("dry season"， "rainy season"); a period during the year when something usually happens ("baseball season")
seat - n. a thing to sit on; a place to sit or the right to sit there ("a seat in parliament")
second - ad. the one that comes after the first
secret - n. something known only to a few and kept from general knowledge; ad. hidden from others; known only to a few
security - n. freedom from danger or harm; protection; measures necessary to protect a person or place ("Security was increased in the city.")
see - v. to know or sense through the eyes; to understand or know
seed - n. the part of a plant from which new plants grow
seek(ing) - v. to search for ("They are seeking a cure for cancer."); to try to get ("She is seeking election to public office."); to plan to do ("Electric power companies are seeking to reduce their use of coal.")
seem - v. to appear to be ("She seems to be in good health.")
seize - v. to take quickly by force; to take control of quickly; to arrest
self - n. all that which makes one person different from others
sell - v. to give something in exchange for money
Senate - n. the smaller of the two groups in the governments of some countries， such as in the United States Congress
send - v. to cause to go; to permit to go; to cause to be carried， taken or directed to or away from a place