合同变更的英文：
alteration of contract
n. 改变，变化，变更，修改
He stepped upon the alter.
他走上圣坛。
Their attitude to me altered subtly.
他们对我的态度发生了微妙的变化。
Prices may be subject to alteration.
价格可能会有所变动。
Circumstances alter cases
此一时,彼一时
A small alteration,adjustment,or limitation.
更改小小的改变，调正或限制
n. 契约；合同；婚约
v. 感染；（使）缩小，缩短，收缩；订契约
The contract was negotiated.
合约已谈妥。
confidentiality of contracts
合同的保密性
Renewal of contract
合同的续订
crimp contraction
皱缩率
a contracted brow
皱缩的眉头