我觉得战术也很重要。老费的打法更全面，他的发球，他的正手和截击技术，无人能比。如果他的攻击性再强一些，纳豆很难赢他。
wǒ juéde zhànshù yě hěn zhòngyào 。Lǎofèi de dǎfǎ gèng quánmiàn ，tā de fāqiú ，tā de zhèng shǒu hé jiéjī jìshù ，wúrén néng bǐ 。rúguǒ tā de gōngjīxìng zài qiáng yīxiē ，Nàdòu hěn nán yíng tā 。
I think that tactics are also very important. Federer's game is more complete. His serve, forehand and volleys are all incomparable. If he plays aggressively, it's going to be difficult for Nadal to win.