brisk 兴隆的

brief 简洁的

brittle 易碎的

browse 浏览

aggravate 加重

aggressive 好斗的

agitate 搅动

agreeable 同意的

aid 帮助

aim 目标

alarm 警告

alien 外国人，外星人

alienate 排斥

allocate 分配

allow 允许

alter 改变

alternate 轮流

alternative 可供选择的

comparable 可比较的

comparative 比较的

compare 比较

comparison 比较

compel 强迫

compensate 赔偿

compete 比赛

competition 比赛

competitive 比赛的

competent 有能力的

compile 收集

complain 抱怨

complaint 抱怨

complement 补充

complete 完成

complex 复杂的

complicate 使变复杂

complicated 复杂的

复习

brisk?

brief?

brittle

browse

aggravate?

aggressive?

agitate?

agreeable?

aid

aim?

alarm?

alien?

alienate?

allocate?

allow?

alter?

alternate?

alternative?

comparable

comparative?

compare

comparison?

compel?

compensate?

compete?

competition?

competitive?

competent?

compile

complain

complaint?

complement?

complete?

complex?

complicate?

complicated