Hco
abbr. 重循环油（heavy cycle oil）
🗣️ 情景例句
She can't sit around and do nothing.
她总不能闲坐着无所事事呀。
I'll probably go out for lunch at about 12:30.
我将可能在大约12:30去外面吃午餐。
I'd like to look at some sweaters.
我想看看毛衣。