Lethal concentration (lc)
[化] 致死浓度
🧩 词语组成解析
🗣️ 情景例句
What is the most important thing for you to be happy?
你认为对你来说开心最重要的是什么？
His career opportunities suddenly looked brighter.
他似乎突然又有希望飞黄腾达了。
But we do not need to send men down to get the oil out, as we must with other mineral deposits.
但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。