threat的固定搭配
1、He was seen as a threat to the established order.他被视为现存制度的大敌。
2、Despite the threat of war, people went about their business as usual.虽然战争在即，人们照常忙着自己的事。
3、The increase in racial tension constitutes a threat to our society.种族间紧张状态的升级是对我们社会的一种威胁。
threat的固定搭配
be under threat是固定搭配， 意为“在威胁之下，遭受威胁”