罗布：我不认为这毫无用处。

Rob: I don't think it's for naught.

youdao

他几乎已经感觉不到伤疤的剧烈刺痛，也开始绕着地牢跑动，盲目地摸着墙壁，虽然心里知道这毫无用处。

Barely conscious of the fierce prickling of his scar, he too started to run around the cellar, feeling the walls for he hardly knew what, knowing in his heart that it was useless.

youdao

这并不是说像伦敦的超低排放区（Ulez）这样的措施毫无用处。

It's not that measures such as London's Ulez are useless.

youdao

If you just scramble a sentence, it's pretty useless because the recipients are never going to be able to reverse the process.

如果你只是加密一个句子，这是毫无用处的,因为收件人没法将这个句子,反加密出来。

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