Bch
abbr. 广播信道（Broadcast Channel）
🗣️ 情景例句
You know, the goods were inspected by the Commodities Inspection Office before shipment.
你知道，这批货物在装船前是经过商品检验局检验的。
Don't halloo till you are out of the wood.
没有脱离危险不要先欢呼。
The bull was busy with the matador at the time,
当时那公牛正忙于对付斗牛士，