written instrument短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 法书证,书面文据 If the parties conclude their contract in the form of a written instrument, the contract is formed when the parties sign or seal the instrument. 当事人采用合同书形式订立合同的,自双方当事人签字或者盖章时合同成立。 mykh This Lease Agreement may be changed only by a written instrument signed by parties. 对本合同只可通过双方书面修改。 blog.sina.com.cn