trade practice

基本解释

In accordance with international trade practice, both parties, once entered into a contract, are liable for its execution.
根据国际贸易惯例，买卖双方一旦成交签约，在法律上应承担履行合同的责任。
For one, the other could nation could use that ruling as a justification for continuing a bad trade practice, making it more difficult to resolve a dispute diplomatically.
一方面，其他国家可能利用判决作为继续进行不正当贸易惯例的理由，这会使靠外交解决贸易争端更加困难。

That is because the victims are vulnerable to exploitation, laws against this practice are not vigorously enforced and it is a hugely profitable trade.

Reynolds Tobacco Company in a commercial speech case filed by the Federal Trade Commission which challenged their use of the cartoon character, Joe Camel, as an unfair trade practice to target children with the fun-loving character.
FORBES: ClimateGate Star Michael Mann Courts Legal Disaster
The FTC has ruled previously that applying a material change in a privacy policy to information collected under a prior policy, without customer consent, constitutes an unfair or deceptive trade practice in violation of the FTC Act.
FORBES: Did Facebook break the law when it changed privacy settings?