"earthquakes are a constant threat in Japan"
"they were under threat of arrest"
"his threat to kill me was quite explicit"
"he was the terror of the neighborhood"
The tenants disregarded their landlord's threat to expel them.
这些租客完全漠视房东要把他们驱赶出去的威胁。
There was then a continual threat of war.
There was then a continual threat to peace.