run off

基本解释

She reached the blanket just in time to see the weasel run off with a tiny rain baby hanging from its mouth.
So poor Lily is also an orphan, at least in the emotional sense, if not in actual reality. Her father, of course, had run off from her mother right after she had gotten pregnant, and then I suppose he came back.
可怜的莉莉也是个孤儿，至少从感情的角度上看是,如果你认为在现实情况不是，她的父亲，当然，在她母亲怀孕后,就开溜了，然后我猜测他又回来了。
耶鲁公开课 - 1945年后的美国小说课程节选
Okay. Now Eva has another gig out in Gilford this morning so she's going to run off, and I'm going to show you, maybe, if we can get our slides up, this overtone series stuff.
伊娃今早在吉尔福特还有其他表演,所以她得告辞了,现在,要是我的幻灯片能用的话,我要用幻灯片为你们演示,这些有泛音列的乐器
耶鲁公开课 - 聆听音乐课程节选

BlackRock will manage the portfolio until the loans are all run off or sold.
FORBES: Crunch Still On, Banks Stay Tight

If you run off with someone, you secretly go away with them in order to live with them or marry them.
If you run off copies of a piece of writing, you produce them using a machine.
If you say that someone is running off at the mouth, you are criticizing them for talking too much.

流失
The contents of organic matter,ammonia nitrogen and nitrate nitrogen in soil of non-degraded meadows are higher than those of the moderately and severely degraded meadows. With the degradation becoming aggravating,the nutrients in the soil run off seriously.
未退化土壤有机质、铵氮和硝态氮氮含量均比中度退化和严重退化的大,随着退化程度的加剧,土壤养分流失严重。
体育
流失