气馁的英文：
discouragement
disheartenment

参考例句：

Never say die
永不气馁

She was not easily disconcerted.
她不是轻易气馁的女人。

Her motto is "Never say die".
她的座右铭是"永不气馁"。

Give a groan of dismay
发出气馁的呻吟

Dismay/dIs5meI;dIs`me/n [U]feeling of shock and discouragement
惊愕;气馁;灰心

"Never say die! Up man, and try"
不要气馁,朋友,振作起来,干!

He was unmanned by his failure in business.
他因生意上的失败而气馁

Not discouraged or disheartened;resolutely courageous.
无畏的不泄气的，不气馁的；坚定而勇敢的。

Don't be pessimistic and discouraged when you meet with difficulties.
遇到困难不要悲观气馁。

Take a defeat with true sportsmanship
输了不气馁

discouragement是什么意思：
n. 泄气，灰心，组织，挫折

It is a discouragement to me.
这真使我泄气了。

They discourage further diffusion.
它们阻碍进一步扩散。

Father discourage the expression of enthusiasm.
父亲不准有热情的表示。

We were discouraged at the bad news.
我们听到那个消息都很沮丧。

There are purely logistic discouragements to newspaper reading
有些纯属逻辑上的障碍，也不利于人们读报。

disheartenment是什么意思：
n. 气馁;沮丧

She's easily disheartened by difficulties.
她遇到困难很容易泄气。

Those young men are too easily disheartened by difficulties
那些年青人遇到困难时太容易泄气了。

Our army in Italy was somewhat disheartened by the removal of seven divisions
我们在意大利的军队因为被调走七个师，士气有些沮丧。

Our army in Italy was somewhat disheartened by the removal of seven divisions.
我们在意大利的军队因为被调走七个师，士气有些沮丧。

The disheartened crew heard that they were to get a new captain and were pleased until somebody reminded them:better the devil you know.
沮丧的船员们获悉他们将有一位新船长到任。在有人提醒他们之前，他们的心情一直不好:知道坏事比不如好。