conventions and treaties的用法和樣例：
例句
- China stresses and supports the conclusion of arms control and disarmament agreements and treaties through negotiation.
中國重視并支持通過談判締結軍控與裁軍協議和條約。 - State and local laws that contradict federal laws or treaties are thus preempted and can be declared unconstitutional by a federal court.
已經存在的與聯邦法律和條約沖突的州或當地的法律可以被聯邦法庭宣稱違反憲法的。
