Polystream
多氯苯
🗣️ 情景例句
Exactly.
就是这样。
The restaurant is on the second floor.
那餐厅在二楼。
They had rough weather, and Kunta's back bled from rolling over on the hard wooden boards.
他们经历了恶劣的天气，孔塔的背部由于在硬木板上滚动而流了血。