偿清的英文：
acquittance
be quit of
extinguish
get quit of
quietus

参考例句：

To liquidate(a debt,such as a mortgage)by installment payments or payment into a sinking fund.
分期偿还，分期付款用分期付款和偿债基金的形式偿清（债务，如抵押）。

He has discharged his debt.
他已把债务偿清。

""When I have paid off the mortgage!"
""当我偿清贷款的时候!

Liquidated obligation
已偿清的债务

Pay off; pay one's debt
报复;偿清债务;资遣

The company said it would pay in full all its creditors.
该公司称将偿清所有债权人的债务。

He is going bankrupt if he can not pay off the loan that becomes due soon.
假如他不能偿清即将到期的贷款，他就要破产了。

acquittance是什么意思：
n. 解除,偿清,清还证明书

acquittal in fact
依事实宣告无罪

The jury brought in an acquittal.
陪审团宣告无罪。

Lack of evidence resulted in their acquittal.
因证据不足而宣判他们无罪。

quit是什么意思：
v. 离开，辞职，停止；辞（职）

She is poor but quite respectable.
她虽穷，人品却很端正。

There had been quite a metamorphosis.
他们完全变了样。

On the face of it, it seems quite reasonable.
从表面看，这似乎很合理。