pay up

英 [peɪ ʌp]

美 [peɪ ʌp]

（不情愿地）清偿，付清

牛津词典

以上各词均含用钱、花钱之义。
These words all mean to give money to pay for goods or services.
指用钱、花钱：
to give money to pay for goods or services
1. She spent £100 on a new dress.
  她花100英镑买了一条新连衣裙。
指（机构或政府）投资：
(of an organization or a government) to spend money on sth in order to make it better or more successful
1. The government has invested heavily in public transport.
  政府已对公共交通投入了大量资金。
指为某事或向某人付巨款：
to pay a lot of money for sth or to sb
1. The company pays out a large share of its profits in dividends.
  该公司将很大一部分利润用作红利。
指总算付清全部欠款：
( rather informal ) to pay all the money that you owe to sb, especially when you do not want to or when the payment is late
1. I had a hard time getting him to pay up.
  我好不容易让他还清了全部欠款。
指勉强付出或交出（钱）：
( informal ) to pay or give money unwillingly
1. She finally coughed up the money she owed.
  她最终勉强归还了她的欠款。
尤指不情愿地大量花钱、大把掏钱：
( informal ) to spend a lot of money on sth, especially unwillingly
1. We've forked out a small fortune on home improvements over the years.
  这些年来我们花了许多钱做房屋装修。
指大量花钱、大把掏钱
( informal ) to spend a lot of money on sth

PHRASAL VERB （不情愿地）清偿，付清
If youpay up, you give someone the money that you owe them or that they are entitled to, even though you would prefer not to give it.
1. We claimed a refund from the association, but they would not pay up.
  我们要求该协会退款，但是他们不肯付钱。

verb

I owe you one and I'm gonna pay up.
既然我欠你我就一定要还清。
You'd better pay up, and that immediately.
你最好把钱付清，马上就付清。
They'll take us to court if we don't pay up soon.
要是我们不马上付清债款，他们就要控告我们。
Every club member must pay up his membership money before the end of the season.
每一位俱乐部成员必须在赛季结束以前缴清会费。
He finally pay up six month late.
他最终付清了欠款但晚了6个月。
He asked me to pay up.
他要求我把钱付清。
B: We'll pay up as soon as we can.
B：我们会尽快付清的。
I have to pay up 1,000 dollars I owed him at one time.
我必须一次还债欠他的1000美元。
You must pay up what you owe me.
欠你的钱我月底还清。你欠我的钱必须还清。
If you don't pay up, I'll take legal action.
你若不将钱还清的话，我全采取法律行动的。