Impactometer
碰撞(空气)取样器
🗣️ 情景例句
Oh, I'd like you to meet my sister-in-law Marilyn.
噢 我来向你介绍我嫂子Marilyn。
When it started raining, I was playing outside.
当雨开始下的时候，我在外面玩。
Please say hello to your mother for me.
请代我向你母亲问好。