面对长时间的训练，没有毅力的人很快就会放弃。

Miànduì cháng shíjiān de xùnliàn, méiyǒu yìlì de rén hěn kuài jiù huì fàngqì.

When facing long periods of training, people without perseverance will soon give up.

学好一门外语需要时间和毅力。

Xuéhǎo yì mén wàiyǔ xūyào shíjiān hé yìlì.

To master a foreign language you need time and perseverance.

只要有足够的毅力和方法，再难的目标也能实现。

Zhǐyào yǒu zúgòu de yìlì hé fāngfǎ, zài nán de mùbiāo yě néng shíxiàn.

As long as you have enough perseverance and the right methods, even the hardest goals can be achieved.