Sootfall
n. (工业区的)煤烟降落(量)
🗣️ 情景例句
I'm calling to ask you some questions about Susan.
我打电话是想问一些关于苏珊的事。
Do you work near the university?
你在大学附近工作吗？
'You needn't have said that,' my wife answered.
“你没必要这么说，”我妻子回答说，