belay
verb uk/ˈbiː.leɪ/ us/bɪˈleɪ/
[ I or T ]（登山时）固定保护绳
to control a rope that a climber is attached to and keep it tight, so that if the climber falls, they do not fall very far
The leader will then belay and instruct the second climber to follow. 这时领队将固定好保护绳，并指示第二位登山者跟上来。
[ T ]（让登山者）抓牢保护绳
to make a climber safe with a rope that has been fixed at a particular point
The knot would let Jim belay himself. 这个结能让吉姆抓牢保护绳。
belay
noun [ C ] uk/ˈbiː.leɪ/ us/bɪˈleɪ/
（登山时）借以固定保护绳的地方
a place where a climbing rope is or can be fixed
To the right a tree stump offers a belay. 后边的树桩正好可以固定保护绳。
（登山时）固定保护绳
an act of fixing a climbing rope
You may need several belays. 你可能需要固定好几条保护绳。