Formjel
煤油混制地层堵塞剂
🗣️ 情景例句
Sounds like a great way to solve the problem.
听起来好像是个解决问题的好办法。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
His talk covered many subjects.
他的报告涉及很多课题。