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.
例句
She was jealous, humiliated, and emotionally at the end of her tether...她既忌妒又感到屈辱，感情上已經到了崩潰的邊緣。I've reached the end of my tether.我已經無計可施了。
N-COUNT
(拴動物的)拴繩，拴鏈
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.
VERB
將…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.
例句
The officer dismounted, tethering his horse to a tree.軍官下了馬，把它拴到一棵樹上。
英漢詞典釋義
n.
(拴牲畜用的)系繩;系鏈
The cow had broken its tether and was in the cornfield.那頭牛弄斷系繩, 跑到玉米田里去了。
(能力等的)限度,范圍
This is beyond my tether.這是我力所不能及的。
vt.
用繩子拴住(牲畜)
He tethered his horse to the fence.他把馬拴在籬笆上。
英英詞典釋義
Noun
1. restraint consisting of a rope (or light chain) used to restrain an animal