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1. 如果正确安装可燃气体报警器，一些悲剧就可以避免。

   rú​guǒ zhèng​què ān​zhuāng kě​rán qì​tǐ bào​jǐng​qì, yī​xiē bēi​jù jiù kě​yǐ bì​miǎn.

   Some tragedies can be avoided if combustible gas alarms are properly installed.

   Source: CCMatrix