Chloroacetic
a. 氯乙酸的
??? 情景例句
Why advanced?
為什么是高級的？
Which foot hurts?Is it the left one?
哪個腳受傷?是左腳？
Don't worry! We won't leave before nine. We'll wait for you outside the school gate!
別擔心！9：00前我們不會出發。我們將在學校的大門外等你！