鸭子

In a sentence

• 这只鸭子正在河里游泳。

  This duck is swimming in the river.

  Here, '鸭子' is used as a noun to refer to the animal 'duck'.

• 我喜欢吃烤鸭，因为鸭子的肉很香。

  I enjoy eating roast duck because duck meat is very tasty.

  In this context, '鸭子' refers to the meat of the duck, often in a culinary context.

• 在比赛中，他像鸭子一样冷静沉着。

  In the competition, he was as calm and composed as a duck.

  Here, '鸭子' is part of a simile, comparing a person's calm demeanor to that of a duck, which might appear calm on the surface while paddling energetically underwater.