Once again he was disappointed in love.

他又一次失恋了。

《新英汉大辞典》

You could be bitterly disappointed once Mercury goes direct again.

你会在水逆结束后狠狠地失望一次。

youdao

Don't be so disappointed. You may try once again.

不要这么灰心丧气的，你可以再试一次。

youdao

Yet those expecting a radical shift from today's tax code to a new system may, once again, be disappointed.

ECONOMIST: George Bush's tax agenda: Handing it back | The

England's batsmen disappointed once again and the tourists were bowled out for 198 to lose by 51 runs in Brisbane.

BBC: Strauss angry after England lose series to Australia

Roberto Martinez's Wigan appear destined for a battle to avoid the drop after picking up just seven points from their last 10 games and fans will be disappointed to see the team surrender a lead once again.

BBC: Wigan 1-1 Stoke