双布林结通常是攀登者最初使用的绳结。

Double bowline is used by many climbers as their primary knot.

youdao

他的父亲说， 双鸟在林不如一鸟在手。

His father says that a bird in the hand is worth two in the bush.

youdao

他的父亲说， 双鸟在林不如一鸟在手。

His father says that a bird in the hand is worth two in the bush.

youdao