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含有數字one的英語成語

■one by one 一個個地

He went through the items on a list one by one. 他逐個處理單子上的項目。

Students went out of the classroom one by one as soon as the bell rang. 下課鈴一響，學生們一個個從教室里走出來。 

■in one 合為一體

He’s President, Treasurer and Secretary in one. 他身兼會長、司庫和秘書三職。

It's a book of English phonetics，grammar and usage in one. 這是一本英語語音、語法和習慣用語結合為一體的書。

■one too many 多余的，不需要的

I found myself one too many among them. 我發現自己在他們當中是個多余的人。

■one in a thousand 優秀的人（或事物）

My brother is a one in a thousand. 我的兄弟是位優秀人物。