未曾的英文：
have not; ne'er

Between them there was a deep unexpressed bond of sympathy.
在他们之间，有一种深深的未曾说出口的同情把他们连在一起。

The widower did not remarry.
那鳏夫未曾再娶.

Hasn't yet earned the appellation of expert
还未曾获得专家的美名

We have made no reference to asymmetric carbon atoms
我们未曾涉及不对称碳原子。

We have made no reference to asymmetric carbon atoms.
我们未曾涉及不对称碳原子。

Acquit a person of a charge
宣告某人未曾犯被指控的罪

She had not committed anything to paper about it.
关于这件事她未曾写下只言片语。

I did not realized the dimensions of the problem.
我未曾意识到问题的严重程度.

an unbeaten path through jungle growth.
森林中未曾穿行过的小路

That is a situation unprecedented in the history of the school.
这是该校有史以来未曾出现过的情况。