Polyacetylene

聚乙炔

🗣️ 情景例句

I heard a lot of shouting, what's up?
我听见很多喊声,出了什么事了?
One penny witgh right is better than a thousand without right.
合法得来一个钱,胜过非法钱一千。
but few of us have skeletons in the cupboard.
但我们当中极少有人有柜中骷髅。
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