This process, called the daily shift verification, typically took a two-person crew four to five hours to complete.
这些步骤被称作每日例行检查，2人一组需要4到5小时才能完成。
2
The crew had to shift his special car to the ambulance into the drive.
医护人员也不得不将他的特制椅子一起抬进救护车。
3
“Obviously, you can’t bring back the friends you lost, ” Mr. Obama said to the crew at a firehouse in midtown Manhattan that lost 15 men, an entire shift, at the World Trade Center.