concentrate基本含义

v.集中(注意力); 聚精会神; 使…集中(或集合、聚集); (使)浓缩;

n.浓缩物;

[例句]He would do well to concentrate more on his work.

他最好还是更加集中精力在工作上。

第三人称单数:concentrates

现在分词:concentrating

过去式:concentrated

过去分词:concentrated

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