Maximum permissible concentration (mpc)
[化] 最大允许浓度
🧩 词语组成解析
🗣️ 情景例句
There must be some way to put my mind to good use.
总会有办法让我发挥才智。
So he is gradually getting used to thinking in English.
因此他正养成用英语思维的习惯。
Finally, turn off the lights and lock the door.
最后，关上灯，锁好门。