But it was all in vain, and I had a feeling of the most dreadful, shameful failure.
但这都是徒劳无益的，我有种极度可怕、极度可耻的失败的感觉。
But when she decided to start her journey, she found herself gradually disappearing into the mud and sand. After numerous tries, she found it was all in vain and was very upset.
当它决定越过沙漠时，却发现自己的河水渐渐消失在泥沙中，它试了一次又一次，总是徒劳无功，最后它灰心了。
Each day he would find some old paper lying about and look into it, to see if there was any trace of Carrie, but all summer and fall he had looked in vain.
每天他都要找些扔在地上的旧报纸，看看有没有嘉莉的什么消息。但是整个夏季和秋季都没有看到。
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