sap

名词 sap:

1. a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
2. a person who lacks good judgment
   同义词：fool, saphead, muggins, tomfool
3. a piece of metal covered by leather with a flexible handle; used for hitting people
   同义词：blackjack, cosh

动词 sap:

1. deplete
   同义词：run down, exhaust, play out, tire
2. excavate the earth beneath

1. They are ventilating the sap of a coal mine.
   他们正在使煤矿坑道通风。
2. The sap flowed out when he broke the stem of the flower.
   他把花茎折断，汁液就流了出来。
3. It was the beginning of the spring and the sap was rising in the boys.
   正当初春季节，勃勃的生气在小伙子们身上奔涌。
4. Her long illness gradually sapped her strength.
   长期的患病使她的体力渐渐衰竭。