lawful trade的用法和样例：
例句
- After china open its procurement market, more attention should be taken on those uncompetitive manners because they are legal trade vallation.
待政府采购市场对外开放之后，再给予那些限制竞争的采购方式以更多的关注，发挥它们的合法贸易壁垒的作用。 - The Chinese are advocating tiger farming to supply a legal trade that would stem poaching from India, protect wild tigers and supply ingredients for traditional Chinese medicine.
中国方面提议对老虎进行饲养，以满足合法贸易的需要，此举可能扼制来自印度的盗猎行为，保护野生虎，并为中药提供药材。
