2 sentences for 奶子 (nǎi​zi)

1. 小宝宝正在吃奶子。

   xiǎo​bǎo​bǎo zhèng​zài chī nǎi​zi.

   The little baby is breastfeeding.

   Source: Dong Chinese Dictionary

2. 这件衣服太紧，显出奶子的轮廓了。

   zhè jiàn yī​fu tài jǐn, xiǎn​chū nǎi​zi de lún​kuò le.

   This dress is too tight; it shows the outline of her breasts.

   Source: Dong Chinese Dictionary