笼子

In a sentence

• 鸟儿飞进了笼子里。

  The bird flew into the cage.

  Here, '笼子' is used as a noun, referring to a physical cage, which confines the bird.

• 她的思维好像被困在一个笼子里。

  Her thoughts seem to be trapped in a cage.

  In this sentence, '笼子' is used metaphorically to describe a mental state of feeling confined or restricted.

• 小明用竹子做了一个小笼子。

  Xiao Ming made a small cage using bamboo.

  Here, '笼子' again functions as a noun, referring to an object constructed to serve as a cage in this context.