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The engine is knocking. There must be something wrong.
发动机发出震响，一定出什么故障了。
youdao
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The engine of our car is knocking badly.
我们汽车发动机的响声很大。
youdao
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The engine is knocking.
那引擎发出爆震声响。
youdao
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The engine is knocking badly.
发动机爆震得厉害。
youdao
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The engine is knocking badly.
发动机爆震得厉害。
youdao