🗣️ 情景例句
She complained, with reason, that she had been underpaid.
她抱怨她的工资一直很低，这也不无道理。
What is happening out there?
外面发生什么事情？
In man's early days, competition with other creatures must have been critical.
在人类早期，人类与其他生物的竞争一定是必不可少的。