- a close call / shave
- acne
- a compliment (on sth)
- a conflicts with b
- (a) contradiction (between a and b)
- (a) control (on / over sth)
- (a) conversion (from sth) (into / to sth)
- (a) conversion (from sth) (to sth)
- acorn
- acorns
- a couple of people / things
- a course (in / on sth)
- a course (of sth)
- acoustic
- acoustics
- a cover (for sth)
- acquaint
- acquaintance
- acquaintances
- acquaintance with sb / sth
- acquainted
- acquainted
- acquainted (with sb)
- acquainted with sth
- acquainting
- 歇后语：小母牛下坡
- 歇后语：牛圈里关猫
- 歇后语：牛鞭敬神
- 歇后语：耗子偷牛
- 歇后语：驴拉磨子牛耕田
- 歇后语：牛大腿上钉掌
- 歇后语：牛耕田,狗看门
- 歇后语：天生的牛性
- 歇后语：乌龟叫牛踩了
- 歇后语：过界的蛮牛
- 歇后语：老牛抵墙头
- 歇后语：使牛去追马
- 歇后语：羊抵牛
- 歇后语：牤牛犊拉套
- 歇后语：牛抄田基
- 歇后语：小母牛长高了
- 歇后语：硬壳虫赶牛
- 歇后语：老虎日牛
- 歇后语：屎巴牛滚蛋子
- 歇后语：沙牛屙尿
- 歇后语：茶罐煮牛头
- 歇后语：小母牛坐霓虹灯
- 歇后语：牛跟到马两个打锤
- 歇后语：牛犊子牙
- 歇后语：牛头配上马嘴