ordinary synthetics don't breathe as well as natural fibres.
普通的合
材料
像天然织物那样透气。
(绝缘)材料ordinary synthetics don't breathe as well as natural fibres.
普通的合材料像天然织物那样透气。
as raw materials became scarce, synthetics were developed.
由于原材料变得稀缺，合材料被开发出来了。
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代表本软件的观点；若发现问题，欢迎向我们指正。
