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答案

this is沒有縮寫形式,。

解析

this is的意思是“這是”,。this is的例句：1、This is going to be a huge problem for us.這將是我們的一大難題,。2,、This is the second time it's happened.這已是第二次了。

擴展知識

this is相關例句

This is the one major drawback of the new system.

這是新系統(tǒng)的一大弊端,。

This is one of the most commonly used methods.

這是最常采用的方法之一,。

This is just one of a whole complex of issues.

這僅僅是所有相關的問題之一。

This is too big ─ have you got a small one?

這個太大——有沒有小的,？

This is the main factor driving investment in the area.

這是推動在這個地區(qū)投資的主要因素,。