2 sentences for 强悍 (qiáng​hàn — tough)

1. 你永远都比我强悍。

   nǐ yǒng​yuǎn dōu bǐ wǒ qiáng​hàn.

   You're stronger than I'll ever be.

   Source: OpenSubtitles

2. 他的性格非常强悍，从不向困难低头。

   tā de xìng​gé fēi​cháng qiáng​hàn, cóng bù xiàng kùn​nan dī​tóu.

   He has a very tough personality and never gives in to difficulties.

   Source: Dong Chinese Dictionary