be discouraged

基本解释

Don't be discouraged!; Don't lose your heart!
不要灰心!
《新英汉大辞典》
Doing such work should not be discouraged: it enhances economists’ understanding of what really goes on in the industries they study.
这样的工作不应该劝阻，因为它能帮助经济学者更好地理解他们研究的行业的真正动向。
ecocn.org
English level can be improved no matter how low it is. So students do not have to be discouraged if your English is bad but you have to start to learn now.
不论你目前的英语水平如何都是可以提高的，因此，你不必为自己的英语不好而气馁，但是你必须从现在开始就要开始学习了。

But he told the CIA staff not to be discouraged."
"Yet, we did not be discouraged by that. During the Arab summit in Tripoli we reconfirmed our commitment to the proximity talks to help the United States achieve this strategic objective."

They are not likely to be discouraged by visions of foreign trials in some remote future.
ECONOMIST: Law and politics
Sadly, even when women show interest and abilities, they may be discouraged from pursuing a STEM career.
FORBES: Why Women Shun Science Careers