Since April the pace of appreciation has been much reduced, in a vain effort to discourage speculators.

自从四月份以来，升值速度已经大大降低，对于阻止投机者来说，这是一个徒劳无功的努力。

youdao

But the effort is largely in vain.

不过大多数努力只是徒劳。

youdao

In one last vain effort to stop the top Gear driver's identity being revealed, the BBC had asked that the hearing at London's High Court be held in private.

英国广播公司苦苦保守《英国疯狂汽车秀》赛车手真实身份的最后一招，就是要求在伦敦最高法院的听证会不公开举行。

youdao

Your article suggests this effort is in vain.

ECONOMIST: Strategic alliances

Those hoping for a big American diplomatic effort may be waiting in vain.

ECONOMIST: American diplomacy

Since April the pace of appreciation has been much reduced, in a vain effort to discourage speculators.

ECONOMIST: Capital inflows to China