"曾經(jīng)"用英語(yǔ)怎么說(shuō)?

1. 用完成時(shí)或過(guò)去時(shí)

人們認(rèn)為海洋曾經(jīng)是生命的發(fā)源地。The sea is thought to have been the cradle of life.

他不提他曾經(jīng)和她見面。He made no mention of having met her.

2. 用once

我們?cè)?jīng)住在倫敦。Once we lived in London.

她曾經(jīng)愛過(guò)我，但現(xiàn)在已成往事。She loved me once, but that's all ancient history now.

3.用ever

被告否認(rèn)他曾經(jīng)遇到過(guò)她。 The accused man denies that he has ever met her.

ever最標(biāo)準(zhǔn)。

once,at one time,once upon a time,ever