L.f.d.
[医] 最低致死量(毒素)
🗣️ 情景例句
It's nice to see young love.... Oh, to be young again!
真高兴看见年轻人相爱……。啊 能再恢复年轻多好
Between two stools one falls to the ground.
脚踏两头要落空。
Fine, thanks, Dad. What about you?
很好，谢谢爸爸。你呢？