No course of conduct or dealing and no trade custom or usage shall modify any provisions of this Agreement.

本协议所有约定均不得根据相关作为或商业惯例而修改。

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The legal status of trade usage has been regulated in "Laws of Contracts of the People's Republic of China", but the definition and the legal application of trade usage haven't been definded clearly .

我国《合同法》明确了交易习惯的法律地位，但对交易习惯的概念理解和法律适用未作具体规定。

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The usage of standard form clauses raised the economic efficiency, economize to trade the cost, but also brought the juridical problems.

格式条款的使用提高了经济效率，节约了交易成本，但也带来了法律上的难题。

youdao

Upset with the usage of his scores, he refrained from releasing them until after June's VinExpo, the massive trade show where Bordeaux prices are established.

FORBES: Counting Sheep