名词

1. 无计可施;山穷水尽;走投无路
If you say that you are at the end of your tether, you mean that you are so worried, tired, and unhappy because of your problems that you feel you cannot cope.

2. (拴动物的)拴绳，拴链
A tether is a rope or chain which is used to tie an animal to a post or fence so that it can only move around within a small area.

3. 将…拴(到)
If you tether an animal or object to something, you attach it there with a rope or chain so that it cannot move very far.

1. restraint consisting of a rope (or light chain) used to restrain an animal

Synonym: leashlead