When you acknowledge the message,. It was 10 years before i left china. Before was was was, was was is.是什么意思？理解1:（字面意思）在过去成为过去之前，过去也曾经是现在理解2：“悟已往之不谏，知来者之可追”理解3：终究会有一天 我们会变成昨天理.
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Extended search ,all mails ,date ,etc.but still i couldn't find my.
It was three months before he finished the work.
It will be 4 years before he graduates他还有四年时间. It was just 3 days before the book was published. This help content & informationgeneral help center experience search Before四种常见句型before四种常见句型如下： (1) it will be+时间+ before 表示“还有多长时间”.或“要过多久才”。before 后面的句子用一般现在时。eg:
Official google search help center where you can find tips and tutorials on using google search and other answers to frequently asked questions. “it will be…before”和 “it was.before”的区别是什么？ 1 在 “it was + 一段时间 + before从句句型中，若主句是一般过去式，从句也是一般过去式时：① 若主句是肯定句,翻译成“过了多长时间之后才……”例：i
