If the engine backfires , the sudden pressure in the intake manifold forces the valve back.
如果發(fā)動機回火, 進氣歧管驟增的壓力就迫使閥門向后移動.
辭典例句
Also , this is why changing menus dynamically sometimes backfires.
這就是為什么動態(tài)地改變菜單有時候事與愿違.
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My old car backfires all the time.
我那輛舊車老是回火.
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Done carelessly , it backfires and leaves a bad impression of him or her on the audience.
評論者一不留心就會事與愿違,給其他聽眾留下壞印象.
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