Fluohydrocarbon
氟代烃
🗣️ 情景例句
Oh, and, Robbie ...
噢 还有 Robbie……
Don't halloo till you are out of the wood.
没有脱离危险不要先欢呼。
He could make out three men in a basket under it and one of them was holding a pair of binoculars.
他看清了气球下面有3个人呆在一只筐里，其中一个举着望远镜。