Definition: when you move on your feet at a speed faster than walking, especially for exercise Level: B1
我们每天下班后都会去跑三英里。
We go for a three-mile ___run every evening after work.
如果你一开始就跑起来，之后会筋疲力尽的。
If you set off at a ___run, you'll be exhausted later.
散步是很好的锻炼，或者去跑步也行。
Walking is good exercise, or going for a ___run.
