undertow

undertow

['ʌndətəu]

n.底流, 退浪, 下层逆流

例句与用法：

He undertook to defend this attitude.

他开始为这一态度辩护。

She undertook to discharge all the responsibilities of a Minister.

她承担了做部长的所有责任。

I undertook to indemnify them for expenses incurred on my behalf.

我负责偿还他们为我而用的全部花费。

He undertook to finish the job by Friday.

他答应星期五之前完成这项工作。

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n.

1. 退浪

2. (海面下的)下层逆流