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
billion10億
binomial二項式
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