keep off 勿踏; 勿踩
keep on 继续（进行）
keep one's word 守信
keep up 保持; 维持; 继续
knock at 敲
knock into sb. 撞上
laugh at 嘲笑
lead to 导致，导向
let in 让……进来，放进
let out 放掉, 泄露
live on 以……为主食，靠……为生
look after 照顾
look ahead 向前看，展望未来
look down upon 看不起，轻视
look for 寻找
look forward to 盼望
look into 向……里面看去; 调查
look out 留神，当心
look through 看穿, 浏览
look up 查找
lots of 许多，大量
make a face 做鬼脸，做苦脸
make friends with 与……交朋友
make up 和解，化装
make up of 由……组成，构成
