名詞 leash:

1. restraint consisting of a rope (or light chain) used to restrain an animal
   同義詞：tether, lead
2. the cardinal number that is the sum of one and one and one
   同義詞：three, 3, III, trio, threesome, tierce, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace
3. a figurative restraint
   同義詞：collar

動詞 leash:

1. fasten with a rope
   同義詞：rope

1. I manage to hold my anger in leash until she have go.
   我壓住火兒她在場時沒有發(fā)作。
2. The dog's leash dragged on the sidewalk.
   在人行道上拴著皮帶的狗

leash

n.（名詞）
A chain, rope, or strap attached to the collar or harness of an animal, especially a dog, and used to lead it or hold it in check.
皮帶：一條系在一動物（尤指狗）項圈或頭具上的鏈子、繩索或皮條，用于牽拉或控制
Control or restraint:
控制或限制：
例句：
emotions kept in leash.
控制感情

A set of three animals, such as hounds.
三只動物為一組，如獵狗
A set of three.
三個一組
v.tr.（及物動詞）
leashed,leash.ing,leash.es
To restrain with or as if with a leash.
用皮條或象用皮條控制

來源：
Middle English lees, lesh
中古英語 lees, lesh
from Old French laisse
源自 古法語 laisse
from laissier [to let go] * see lease
源自 laissier [允許走] *參見 lease