Kyanization
水银防腐法
🗣️ 情景例句
She's smart and sensitive for her age.
就这样的年龄来说 ，她很聪明而且懂事。
If you wish good advice, consult an old man.
如要忠告向老人请教。
Have you cleared your luggage with customs?
你的行李通关了吗？