W-s
[醫][=watt-seconds]瓦秒（焦耳-熱量單位）
??? 情景例句
What I eat won't stay down.
我吃東西時感到惡心。
John took a glance at the beautiful women.
約翰瞄了一眼那個美麗的女人。
The question was, which one?
問題是，哪一種氣體導致火災呢？