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
Mary, what's your favorite sport?
玛丽，你最喜欢什么运动？
She was the more promising worker of the two.
她是两个工人中比较有前途的一个。
A truly dedicated bargain hunter must have patience, and above all, the ability to recognize the worth of something when he sees it.
一个到处找便宜的人必须具有耐心，而且最重要的是看到珍品时要有鉴别珍品的能力。