W-s
[医][=watt-seconds]瓦秒（焦耳-热量单位）
🗣️ 情景例句
What I eat won't stay down.
我吃东西时感到恶心。
John took a glance at the beautiful women.
约翰瞄了一眼那个美丽的女人。
The question was, which one?
问题是，哪一种气体导致火灾呢？