Indylidene
[化] 二氢(-1,1-)亚吲哚
🗣️ 情景例句
I received a letter from my parents this morning.
今天早上我收到父母一封信。
How are you going?Are you going by boat?
你怎样去?坐船去吗？
Look at the rain! It's heavy, isn't it?
瞧这雨！下这么大，是吧？