便泄气
Become discouraged
以上为机器翻译结果，长、整句建议使用 人工翻译 。
起先我很快乐，但后来我便感到泄气、沮丧。
At first, I was happy, but later, I was frustrated and depressed.
youdao
At first, I was happy, but later, I was frustrated and depressed. I was homesick all the time.
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