You must work or go hungry.

你必须工作，否则就得挨饿。

youdao

He had to have a job or go hungry.

他必须找到工作，否则就得挨饿。

youdao

You had to have a job or go hungry.

你得找一份工作，不然就要挨饿。

youdao

Earning dollars outside tourist areas is harder, so locals improvise or go hungry.

ECONOMIST: Fidel, the church and capitalism

Now, as their filched supplies begin to run out, they are forced to pay huge mark-ups to profiteers, or go hungry.

ECONOMIST: Lesotho

That means they go hungry or are not able to maintain normal and consistent eating patterns because they cant afford it.

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