Phthalidene
2-苯并[C]呋喃酮基
🗣️ 情景例句
Is this where I claim parcels?
这里是领包裹的地方吗？
I'm sorry. Has it been bothering you?
对不起，打扰你了？
They are only too delighted to accept the invitation.
他们非常乐意接受邀请。