Dehydrothiophen
[化] 脫氫噻吩
??? 情景例句
How was your school-board meeting last night?
昨天晚上你們的聯合校董會會議開得怎么樣？
Can't be picky.
不可以偏食。
I'm really looking forward to this.
我期待這次參觀已久了。