Hrb
abbr. 危险性评审委员会（Hazardous Review Board）
🗣️ 情景例句
I visited Japan on an observation tour of its industries.
我到日本观摩它的工业。
Could you please let us know what discount you can give for an order exceeding 400 sets?
能否告知定货超过400台你方所能给的折扣。
Don't worry. Li lei.
不用担心。李磊。