每日商务英语 第579期:反复地

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time and time again --------- 反复地（副词词组）

英文释义
(ADVERB PHRASE) Repeatedly; very often.

例句
I called my elderly parents time and time again today, but they did not answer the phone, so I became quite worried about them.
今天，我给年迈的父母打了好几次电话，但他们都没有接，我非常担心他们。