运动员需要强化防御技能。

Yùndòng yuán xūyào qiáng huà fángyù jìnéng.

Athletes need to strengthen their defensive skills.

守门员的防御能力关乎整场比赛的胜负。

Shǒuményuán de fángyù nénglì guānhū zhěngchǎng bǐsài de shèngfù.

The goalkeeper's defensive ability is crucial to the outcome of the entire game.

我们应该加强网络防御，防止黑客攻击。

Wǒmen yīnggāi jiāqiáng wǎngluò fángyù, fángzhǐ hēikè gōngjí.

We should strengthen our online defense to prevent hacker attacks.