were of no avail
都无济于事
以上为机器翻译结果，长、整句建议使用 人工翻译 。
She found him sleeping heavily, and all her efforts to awaken him were of no avail.
她发现他睡得很沉，她想唤醒他的一切努力都无济于事。
youdao
All his efforts were of no avail.
他的努力都没有用。
The doctors' efforts to save the child were of no avail.
医生为救这个孩子所做的全都白费了。
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