if you had half an eye

收集英语... ... have an eye for 很懂赏 if you had half an eye 如果你不是完全瞎了（或胡）的话 see with half an eye 一望而知 ...

... If the sky falls we shall catch larks 不必杞人忧天 if you had half an eye 如果你不是全瞎的话 if-clause 条件子句 ...

keep an eye... ... score a bull's eye 命中靶心; 大获成功 if you had half an eye 如果你稍微注意 in eye 在望, 在视线之内 ...