"cough up" in Chinese (Simplified)
不得不付出（钱、信息等）- 吐出（咳嗽时）
Definition
指不情愿地支付（通常是钱）或被迫给出某物。字面意思也可以指咳嗽时将东西咳出喉咙。
Usage Notes (Chinese (Simplified))
用法属于口语，常用于不情愿付钱、透露信息、交出东西等。有时带玩笑意味。多数情况下指钱，偶尔指咳嗽时咳出东西。切忌用于正式场合。
Examples
He finally coughed up the money he owed me.
他最后还是**付出了**欠我的钱。
The patient coughed up blood during the exam.
病人在检查时**咳出了**血。
I don't want to cough up so much for a new phone.
我不想为新手机**花这么多钱**。
Stop waiting—just cough up the truth already!
别等了——现在就**把真相说出来**！
If you lose the bet, you’ll have to cough up.
如果你输了赌注，你就得**掏钱**。
Every time we go out, she never wants to cough up for her share.
每次我们出去，她总是不愿意**出自己的份钱**。