During the busy hours of the day, one can see long queues of bicycles moving on the roads.

一天中最繁忙的上下班时间，马路上奔驰着由自行车组成的长龙。

youdao

When you're busy all day the last thing you want to do is spend hours slaving over a hot stove.

当你忙碌了一整天后，你最不愿意做的事就是花好几个钟头在灼热的火炉边辛苦地劳作。

《柯林斯英汉双解大词典》

Students can come into my office during scheduled office hours or any other time when I'm in the office and not busy.

同学们可以在预定的工作时间来办公室见我，至于其他时间，只要我在办公室而且不太忙的话也是可以的。

youdao

The home page took about 10 minutes to load during the busy evening hours when I accessed the site, and downloading the 3MB player took more than half an hour.

CNN: Free player adds vision to Internet radio

Wreckage was scattered over a half-mile area, forcing the closure of the busy roadway for several hours.

WSJ: NTSB: Pilot action, icing led to NJ plane crash

Also, your vehicle can upload its position to road authorities, so they can use variable road tolls as a traffic management tool -- raising the price on busy stretches during rush hours.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car