Polyacetylenes
多炔
🗣️ 情景例句
And a good paint job.
还需要好好的粉刷。
Benefits please like flowers, while they are fresh.
恩泽让人欣喜，犹如鲜花使人心醉。
In this way, he has begun his own private 'telephone' service.
就这样，他开始自己的私人“电话”业务。