balance余額
bar graph(chart)條帶圖
base堤邊，底面，冪或乘方的底數(shù)
base area底面積
be across from在……對(duì)面
be closet to接近……
be composed of由構(gòu)成
be equal to與……相等
be equivalent to anther equation與另一方程痛解
be fewer than小于
be greater than大于
be greater than or equal to不小于
be inscribed in內(nèi)接于
be less than小于
be less than or equal to不大于
be parallel to平行于
be perpendicular to垂直于
be substituted for代替
billion109
binomial二項(xiàng)式
bisect把……二等分
block立體
blot out涂掉，刪掉
bound辯解，范圍;鄰接
*brand
*bulk大量