2 sentences for 男儿 (nán'ér)

1. 男儿有泪不轻弹。

   nán'ér yǒu lèi bù qīng​tán.

   A man does not shed tears easily.

   Source: Dong Chinese Dictionary

2. 遇到困难勇往直前，才是一个顶天立地的男儿。

   yù​dào kùn​nan yǒng​wǎng​zhí​qián, cái shì yī gè dǐng​tiān​lì​dì de nán'ér.

   Charging forward in the face of difficulties is what makes a man of true integrity.

   Source: Dong Chinese Dictionary