Definition: in less than a particular length of time Level: C2
医生承诺在一小时内到达这里。
The doctor's promised to be here ___inside an hour.
你可以在10分钟内到达七号地铁线上的两个车站。
You can reach two stations on the tube-line seven ___inside 10 minutes.
包裹将在两天内送达。
The package will be delivered ___inside two days.
