Impactometer
碰撞(空气)取样器
🗣️ 情景例句
She is a terrible student.
她是一个极糟的学生。
Don't underestimate the difficulties of the work.
不要低估了这项工作的限巨性。
By bicycle? From Beijing? That's a long trip.
骑自行车去？从北京出发？这可是长途旅行呀。