1. at the end of one's tether : 山穷水尽；
名词
1. This is beyond my tether.
这是我力所不能及的。
1. 系绳：tetartoidalclass 五角三四面体组 | tether 系绳 | tetheredbuoy 系缆浮标
2. 范围：tete-a-tete 两人私下的 | tether 范围 | tetherball 绳球
3. 系链：tethelin /垂体促生长磷脂/ | tether /系链/ | tetherball /绳球/
4. 绳; 系链：ferry 渡口 渡船 | tether 绳; 系链 | scheme 计划, 规划, 方案, 设计
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.
e.g. She was jealous, humiliated, and emotionally at the end of her tether...
她既忌妒又感到屈辱，感情上已经到了崩溃的边缘。
e.g. I've reached the end of my tether.
我已经无计可施了。
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.
e.g. The officer dismounted, tethering his horse to a tree.
军官下了马，把它拴到一棵树上。