threaten sth.意为“以……相要挟”。
threaten sb. with sth.意为“（用……）威胁某人”。
threaten to do sth.意为“扬言要做某事”。
threaten an employee with dismissal 用开除威胁一位雇员
The robber threatened to kill one person every hour if his demands were not met.
这个抢劫犯威胁说如果他的要求得不到满足他就每小时杀一个人。
