Tetrahydrothiophene
四氫噻吩
??? 情景例句
Here are a few magazine articles complimenting our products.
這是些稱贊我們產品的雜志文章。
You'll solve the problem if you concentrate upon it.
如果全神貫注，你就會解決這個問題。
Thank you. said Meimei.
“謝謝你，”梅梅說。