Pentethide
五乙基化物
🗣️ 情景例句
Did you sleep soundly last night.
你昨晚睡得好吗？
Some relative clauses in the contract have to be amended owing to the unexpected situation.
由于这种难以预料的情况，合同中的有关条款不得不做些修改。
They were expecting a valuable parcel of diamonds from South Africa.
他们正期待从南非来的一个装着钻石的贵重包裹。