问题描述：
英语翻译
You must shut the gas supply off if there's a leak.翻译成：“煤气泄漏时,必须把截门关上.”还是“必须关上阀门,以防煤气泄漏”?
You must shut the gas supply off if there's a leak.翻译成：“煤气泄漏时,必须把截门关上.”还是“必须关上阀门,以防煤气泄漏”?
问题解答：
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