Happens
v. 发生( happen的第三人称单数 ); 碰巧; 产生结果; （向对方表示异议或不悦等）
🗣️ 情景例句
It's a safe bet that he'll get the job.
他能得到那份工作，这几乎可以打保票。
She is very fed up about it.
她对此非常不满。
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，