dishearten
单词辨析：
指使人心情不好、不高兴。
Losing his job really depressed him.
丢了工作让他很沮丧。
That book depressed him.
那本书让他看得心情郁闷。
指使人失去信心或泄气，常可与 demoralize 换用。
Don't let one failure discourage/demoralize you! You can do it!
别失败一次就灰心！你能行的！
She is easily discouraged/demoralized by obstacles.
她一遇到阻碍就泄气。
较正式用词，指使人失去希望和信心。
Don't let the defeat dishearten you! Remember that Rome was not built in a day.
不要因为失败而灰心！要知道成功不是一蹴而就的。
相关例句：
Bad credit can dishearten you in many ways.
不良信贷可以气馁，你在许多方面。
But the reality of these formidable challenges should not dishearten us.
但是，这些巨大挑战的现实不应使我们心灰意冷。
Your rousing tales of the Second Age dishearten nearby foes and lighten the footsteps of your allies.
你讲述第二纪元那些令人振奋的史诗故事，使附近的敌人感到无比沮丧，并且可以不断激励队友前进。
The way some people looked at her face with disgust seemed to dishearten her even more.
一些人用厌恶的目光看她的脸时似乎使她更加沮丧。
Don t let this defeat dishearten you.
不要因为这次失败而气馁。
My fear is that newcomers with try to start out on these machines and then become dishearten to the sport.
我担心的是新的尝试启动了对这些机器，然后成为气馁的运动。