Majoring
major（以…为专业）的现在分词形式
🗣️ 情景例句
This weekend I'm going to install a home security system.
这个周末我要装一套家庭保安系统。
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
Well, I'll have tea by myself.
好吧，我一个喝茶了。