Phthalhydrazide
邻苯二甲酰肼
🗣️ 情景例句
You are a very smart young man, Robbie.
你是个绝顶聪明的年轻人， Robbie。
My boyfriend is against me going too.
我的男朋友也反对我去。
'Would you mind unlocking this suitcase please?'
“请打开这只手提箱好吗？”