Phthalazone
[化] 2,3-二氮雜萘酮
??? 情景例句
She feels bad, too, Grandpa.
她也很沮喪， 爺爺。
No, Jack. You must go on.
不行，杰克。你必須繼續下去。
It was very dark, so they turned on a torch.
飯廳很暗，于是他們打開了手電筒。