This is不可縮寫成This's。正統(tǒng)的英文里是不可以縮寫。this is沒有縮寫形式。This Is讀音：英[s z]，美[s z]。

this is沒有縮寫形式。this is的意思是這是。this is的例句：I think they got the message that this is wrong（我認(rèn)為他們已經(jīng)得到了消息，知道這是錯誤的）。

this is的例句：This is a clear demonstration of how technology has changed（這清楚地表明了技術(shù)已有了怎樣的.進(jìn)步）；This is positively the last chance for the industry to establish such a system（這絕對是該產(chǎn)業(yè)建立這樣一個(gè)體系的最后機(jī)會了）。

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(guān)的問題之一。

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

這個(gè)太大——有沒有小的？

This is the main factor driving investment in the area.

這是推動在這個(gè)地區(qū)投資的主要因素。