A common custom is to encourage the slowest hiker to hike in the lead and have everyone match that speed.

一个惯例是：鼓励最慢的一位走队首，以使整队以他的速度前进。

youdao

A common custom is to encourage the slowest hiker to hike in the lead and have everyone match that speed.

一个惯例是：鼓励最慢的一位走队首，以使整队以他的速度前进。

youdao