Safety criterion
[化] 安全准则
🧩 词语组成解析
🗣️ 情景例句
Thanks. And what about your family?
谢谢。那你的家庭呢
Beware of a silent dog and still water.
警惕无声之狗会咬人，平静之水会覆舟。
That's the doorbell, said Ann's mother. They're here!
“门铃响了，”安的母亲说。“他们来啦！”