When tired, sleep, when hungry, eat.

累了就睡，饿了就吃。

youdao

When hungry, eat your rice; when tired, close your eyes.

饥饿时，吃饭；疲倦时，闭眼。

youdao

When hungry lambs called out to their mothers their breaths puffed out in misty 6 plumes.

饥肠辘辘的羊羔朝着它们的母亲叫唤，它们呼出的空气化成雾蒙蒙的缕缕青烟。

youdao

But that did not help. I was just as hungry when I came out of the water.

VOA: special.2010.08.01

There would be some sort of cooking, some attempt to store food for when people may have been hungry later, etc.

食物会被烹制,有人试着储藏食物,以防饥饿

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

When you're really tired sleep is what you want to do like when you're really hungry you want to eat.

你累了，就会想睡觉,正如你饿了想吃东西一样。

耶鲁公开课 - 心理学导论课程节选

Even when given the option to eat when hungry or to stimulate the pleasure center, the rats chose the stimulation until they were physically exhausted and on the brink of death.

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We will always enjoy a meal when hungry.

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The CBOE staff proposal comes at a time when revenue hungry states are grasping for ways to force Internet retailers like Amazon.com and Overstock.com to collect their sales taxes and, failing that, to prod their own citizens to voluntarily cough up the dough.

FORBES: California Tax Collectors Eye Buying Names Of Web Shoppers