它的用法,有例句哦.

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它的用法,有例句哦.

它的用法,有例句哦.
它的用法,有例句哦.

它的用法,有例句哦.
once:
做副词
1.一次,一回.
eg:I saw him once and never again.我见过他一回,以后再也没见到过.
Once a week ,she wrote to her mother.她一星期一次给她妈妈写信.
2:曾经,一度
eg:She was oce my best friend.她曾是我最好的朋友.
3:用于条件句、否定句等,一旦
eg:If you once forget it,you won't come up with it again.你一旦忘记它,就不会再想起来.
4:用于否定句,一次也,完全
eg:I haven't seen him here once.我自爱这里一次也没见到过他.
I couldn't once get his meaning.我完全不能理解他的意思.
5:乘以1
eg:Once eight is eight.一乘八得八.
6:亲属关系上隔一代
eg:a cousin once removed 同(外)曾祖的堂(或表)兄弟(姐妹)
做名词
一次,一回
eg:Do it just this once .就做这一次.
做连词
一旦.就.
eg:Once you have taken the examination ,you will be able to relax.
你一旦考过,就可以轻松了.
做形容词
从前的,一度的
eg:the once capital of the nation 那个国家的旧都.
答题完毕,希望对你有所帮助.