The prisoners must remain within bounds while they are out working in the field.

囚犯到野外干活时不能越过界线。

youdao

They choose to remain comfortably within the bounds of their own experience, never troubling to wonder how it would feel to have been born other than they are.

他们选择舒服的停留在他们自己的经验领域里，从不费心去想如果生下来不是他们现在这样感觉会是如何。

youdao

Catalan nationalists are drawing up a new one which, despite Mr Carod-Rovira's populist harangues, will, according to Catalonia's Socialist premier, Pasqual Maragall, remain within the bounds set by the 1978 text.

ECONOMIST: Spain and the Basques

Skeptics believe that temperatures will rise due to CO2, but will remain within the bounds of temperatures we have already seen over the last millenia, including those in the Medieval Warm Period during which European civilization thrived.

FORBES: Bait and Switch in the Climate Debate