Nitrolignin
硝化木素
🗣️ 情景例句
Or at least give him some advice.
再不然至少可以给他一些忠告。
You live here in the city,don't you?
你出生在这个城市吗？
I don't know. Let's go for a walk.
我不知道。咱们去散散步吧。