自行车的前轮胎需要打气了。

The front ___tire of the bike needs to be inflated.

长时间走路后，我的腿很容易疲劳。

My legs ___tire quickly after long walks.

照顾婴儿一整天让新父母筋疲力尽。

Taking care of the baby all day ___tired the new parents out.