Cascade impactor
[化] 阶式碰撞取样器
🧩 词语组成解析
n. 撞击器；悬浮微粒的取样器
🗣️ 情景例句
What? Tell me.
什么事？ 说给我听听。
We learn not at school, but in life.
学习不在校，而在生活中。
When he died, however, his brothers found it impossible to keep the secret any longer.
他死后，他的弟弟们才觉得无法再保守这个秘密了。