Bsub
abbr. ball-and-socket upper bearing 上球窝轴承
🗣️ 情景例句
I'm thinking about it....
我正在考虑中……
I couldn't get through.
我打不通电话。
Hello, Jim! Did you have a good time at the cinema?
你好，吉姆！你在电影院过得很开心吧？