1.His trip comes amid trade tensions and as the US and China work together to push for North Korea's denuclearization.
tension 紧张关系
Racial tensions exploded into riots.
种族间的紧张关系爆发成骚乱 。
2.The American Civil Liberties Union says that would be illegal and violate the Constitution.
violate 违反
She violated the terms of the contract repeatedly.
她三番五次地违反合同条款 。