They take a half hour to call in detectives.他们花了半个小时叫侦探。
took almost a half hour.花了差不多半个小时。
I'm getting calls from New York every half hour.我每半小时就会接到纽约的电话。
We still have two and half hours left until our date.离约会还有两个半小时。
The ship sank two and half hours later两个半小时后，船沉没了
Two astronauts spent six and half hours unhooking a girder两名宇航员花了六个半小时解开一根大梁
I will execute a hostage every half an hour.我会每半小时处决一名人质。
This lasted for almost half an hour.这持续了将近半个小时。
After half an hour, he's screaming,半小时后，他开始尖叫，
