L.f.d.
[医] 最低致死量(毒素)
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
What are you going to do with the books?
你打算拿这些书怎么办？
Can you supply us right away?
能够立刻供货吗？