From now on, I must practise hard.

从现在开始，我必须刻苦练习。

youdao

You practise hard to be in the last round in with a shout of winning.

BBC: Gallacher posts course record 63 at Celtic Manor

So it may find it hard to practise exactly what it preaches.

ECONOMIST: George Robertson, the new man for NATO

Older politicians in rural seats still practise trusted methods, securing a hard vote with hard cash channelled through a network of personal connections.

ECONOMIST: Japan