41)leave no stone unturned 不遺余力；全力以赴
--Lynn left no stone unturned in her research, and handed in an excellent paper. (Lynn全力以赴做她的研究，交了一篇優(yōu)秀的論文。)
42)on cloud nine 沉浸在幸福之中；非常高興
--Marcia looks like she’s on cloud nine. Do you know what made her so happy? (Marcia好象沉浸在幸福之中。你知道她為什么這么高興嗎？)
--She just had a paper accepted for publication. (她有一篇文章要發(fā)表了。)
43)on the tip of one’s tongue 一時(shí)想不起來，話到嘴邊又忘記
--Are you sure you can’t remember the name of that record? (你肯定記不起來那張唱片的名字嗎？)
--It’s just on the tip of my tongue! (我就是一時(shí)想不起來了。
44)reach the bottom of the barrel 用完，彈盡糧絕
--Don’t you have any other clean shirts? (你還有其它干凈襯衫嗎？)
--I guess I’ve reached the bottom of the barrel. (我想我已經(jīng)用完了。)
45)rub sb. the wrong way 使(某人)有點(diǎn)惱火；惹怒；引起反感；煩擾，打攪
--What do you think of our new economics instructor? (你覺得新經(jīng)濟(jì)學(xué)老師怎么樣？)
--I don’t know. Something about him rubs me the wrong way. (不知怎么的，他有點(diǎn)讓我反感。)
46)scratch the surface 只懂皮毛，很不了解(通常和限制性副詞如only, hardly等詞連用)
--You’ve certainly done a lot of research for your project. (你顯然對(duì)你的課題做了不少研究。)
--It seems like a lot, but actually I’ve only scratched the surface. (看上去不少，但事實(shí)上我只懂一些毛皮。)
47)up in the air 尚未決定的；捉摸不定的；懸而未決的
--Her plans for the weekend are still up in the air. (她尚未決定如何度過這個(gè)周末。)
--Lynn left no stone unturned in her research, and handed in an excellent paper. (Lynn全力以赴做她的研究，交了一篇優(yōu)秀的論文。)
42)on cloud nine 沉浸在幸福之中；非常高興
--Marcia looks like she’s on cloud nine. Do you know what made her so happy? (Marcia好象沉浸在幸福之中。你知道她為什么這么高興嗎？)
--She just had a paper accepted for publication. (她有一篇文章要發(fā)表了。)
43)on the tip of one’s tongue 一時(shí)想不起來，話到嘴邊又忘記
--Are you sure you can’t remember the name of that record? (你肯定記不起來那張唱片的名字嗎？)
--It’s just on the tip of my tongue! (我就是一時(shí)想不起來了。
44)reach the bottom of the barrel 用完，彈盡糧絕
--Don’t you have any other clean shirts? (你還有其它干凈襯衫嗎？)
--I guess I’ve reached the bottom of the barrel. (我想我已經(jīng)用完了。)
45)rub sb. the wrong way 使(某人)有點(diǎn)惱火；惹怒；引起反感；煩擾，打攪
--What do you think of our new economics instructor? (你覺得新經(jīng)濟(jì)學(xué)老師怎么樣？)
--I don’t know. Something about him rubs me the wrong way. (不知怎么的，他有點(diǎn)讓我反感。)
46)scratch the surface 只懂皮毛，很不了解(通常和限制性副詞如only, hardly等詞連用)
--You’ve certainly done a lot of research for your project. (你顯然對(duì)你的課題做了不少研究。)
--It seems like a lot, but actually I’ve only scratched the surface. (看上去不少，但事實(shí)上我只懂一些毛皮。)
47)up in the air 尚未決定的；捉摸不定的；懸而未決的
--Her plans for the weekend are still up in the air. (她尚未決定如何度過這個(gè)周末。)