Pentabromobenzene
五溴苯
🗣️ 情景例句
Mitchell is
Mitchell是
If you can guarantee on-time delivery with a penalty for late delivery, we can accept your sales price.
如果你能保证用惩罚延误发货方式准时发货，你的销售价我们可以接受。
A young man and a young woman were sitting behind me.
一青年男子与一青年女子坐在我的身后，