concentrate

concentrate

['kɔnsentreit]

v.专心, 集中, 浓缩
n.浓缩物

例句与用法：

The threat of going bankrupt is very unpleasant but it certainly concentrates the mind.

即将破产的威胁虽令人极烦恼，但确也能逼迫人开动脑筋。

The crowds concentrated round the palace.

人群汇集在宫殿的四周。

I can't concentrate on my work when I'm tired.

我累了就无法集中精力工作。

词形变化：

形容词: concentrative | 副词: concentratively | 名词: concentrator | 动词过去式: concentrated | 动词过去分词: concentrated | 动词现在分词: concentrating | 动词第三人称单数: concentrates |

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vt.

1. 集中; 聚集, 集结[O][(+on/upon)]

We must concentrate our attention on efficiency.

我们必须把注意力集中在效率上。

Our population is concentrated in the big cities.

我国人口集中在大城市里。

2. 浓缩

vi.

1. 集中; 聚集, 集结[Q]

2. 全神贯注; 全力以赴[(+on/upon)]

She couldn't concentrate on a book very long.

她不能长时间专心读一本书。

n.

浓缩物; 浓缩液[C][U]

短语词组：

concentrate on/upon

1. 全神贯注于

I must concentrate on my work now.

我现在必须集中精力工作。