未检出用英语怎么写

Not detected

未───not;检出───detection

He jumped on me for not agreeing with him.───他因我不同意他而斥责我.

This pen is not very good, but we'll have to make it do.───这支笔不太好, 但我们得对付着用.

All the keys hang not at one man's girdle.───钥匙不一定都挂在一个人的腰带上.

The few small rivers could not hold all the rain that fell during the wet season.───几条小河容不下雨季的全部雨水.

Coffee will not grow in a cold climate.───咖啡不能生长在寒冷的气候下.

They are agreed in principle but not in detail.───他们的看法在大体上是一致的,但是在细节上有所不同.

I hinted at his imprudence, his folly, but he did not take my hint.───我暗示他的轻率, 他的愚蠢, 但他没有觉察我的暗示.

He did not agree until I had talked to him for a long time.───我劝说了半天,他才肯了.

Knowledge advances by steps not by leaps.

He was not a natural leader.

Be careful not to capsize the boat.

Not let the grass grow under one's feet.

The golden age is before us, not behind us.