Persulfide
[化] 过硫化物\\n[医] 过硫化物
🗣️ 情景例句
I have received the secretarial training for six months.
我曾接受过6个月的秘书训练。
How long have you been married?
你们结婚多久了？
What is your plan?
你的计划是什么？