1.stretch from 延伸

例句:Most stretch yarns can be extended from one and one-half to twice their normal or relaxed length.
大多数弹力丝可被拉伸到正常或松驰状态长度的1倍半到2倍%7|=GM-=-X*MN_4a|n。

2.from to 从...到

例句:He was fired from his job after roughing up a colleague.
他因为对一位同事动粗而被开除了7z,(t3;gjth4eo1a%N。

3.struggle to 斗争

例句:At all events, we will carry the struggle to the end.
无论如何，我们要将斗争进行到底~H@N0wFdGC。

4.be made of 用…造成

例句:The pipes should be made of plastic .
这些管子应该是用塑料制作的oJ[mxjpuAJYRN_。