Translate the following sentences into Chinese .(英译汉) The lubrication system makes sure that every moving part in the engine gets oil so that it can move easily.
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举一反三
【单选题】1) How can one feel if he enjoys what he is doing according to paragraph one in Text A?
【简答题】U404 How can one feel free and important in his work? One can feel free if he 1) __________ what he is doing and one can feel imprtant if what he is doing is 2) ___________ by society.