look through 浏览
look out 当心 = be careful
look out of 向外看
look like 看上去像...
look forward to doing 盼望做某事
look back 回头看
look ahead 向前看
look for 寻找（指寻找的动作）
look over 检查 = check
look blue 神色沮丧
look black at 怒目而视
look into 调查
look into the mirror 照镜子
look on 旁观