Maximum permissible concentration (mpc)
[化] 最大允许浓度
🧩 词语组成解析
🗣️ 情景例句
Are you with me on this?
这一点你听懂我的意思没有？
We can't afford the expense.
我们不能付出那些花销。
When I returned form abroad recently, a particularly officious young Customs Officer clearly regarded me as a smuggler.
最近一次，我也出国归来，碰上一位特别好管闲事的年轻海关官员，他显然把我当成走私犯。