Hazchem
n. <英>危險化學品標簽系統
??? 情景例句
How was your school-board meeting last night?
昨天晚上你們的聯合校董會會議開得怎么樣？
You think I was born yesterday!
我沒那么笨！又不是三歲小孩。
I told him the whole story. He laughed. You're great! I'm going to tell everyone.
我把整個事情都告訴了他。他笑了。“你真了不起！我要對大家說