concern的过去式

concern

[kənˈsɜːn]

n.担心;令人担心的事;关心（的事）;分内之事;公司;

v.影响;涉及;使担忧;关心;对…感兴趣;认为…重要;

复数： concerns 过去式： concerned 过去分词： concerned 现在分词：concerning 第三人称单数： concerns

例句:

1、

The safety of tacrine has not yet been proven, and there is concern that it causes damage to the liver.

他克林的安全性尚未得到证实，有人担心它会对肝脏造成损害。

《柯林斯高阶英汉双解学习词典》

2、

Development has been guided by a concern for the ecology of the area.

该地区的发展以注重生态为指导原则。

《柯林斯高阶英汉双解学习词典》

3、

Don't interfere in what doesn't concern you.

不要管与自己无关的事。

《牛津高阶英汉双解词典》

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