To boost others' morale and diminish one's own prestige or confidence; to play into the hands of opponents and demoralize oneself.
在项目遇到挑战时，我们不能长别人志气，灭自己威风，而应该相信团队的能力，共同克服困难。
When facing challenges in a project, we must not boost others' morale and diminish our own confidence; instead, we should believe in the team's ability and overcome difficulties together.
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