Polyyne
聚炔烃
🗣️ 情景例句
Our toy company makes the most wonderful toys for kids.
我们玩具公司为小孩子们制造最棒的玩具。
That's a conservative point of view.
那是个保守的观点。
Why not? His home isn't far from here. Let's go.
为什么不呢？他家离这儿不远。我们走吧。