be keen about 喜爱，对…着迷
be keen on 喜爱;渴望
keep away 站开;使离开
keep back 留在后面;阻止;隐瞒
keep company with 和…交往
keep down 控制;压服;缩减开支
keep from 阻止;使免于;隐瞒
keep in mind 记住
keep off 避开;不让…接近
keep on 继续进行，反复地做
keep out of 躲开，(使)置身…之外
keep to 坚持;固守(习惯等)
keep to oneself 保守秘密，不与人来往
keep under 压制;控制
keep up 继续;坚持，维持
keep up with 跟上，不落后
kill off 消灭，杀光
kind of (状语)有点儿，有几分
bend one's knee to 向…跪下，屈服于
drop to one's knees 跪下
fall on one's knees 跪下(请求等)
knock down 撞倒;击落;拆除
knock off 把…敲掉;击倒;停工
knock out 敲空;(拳击中)击倒
know about 了解，知道…的情况
know better than 很懂得(而不至于)
be known as 以…知名;被认为是
be known for 因…而众所周知
be known to 为…所知
From:https://www.zgghmh.com/CET-6/20006432.asp