zhuāng hǎo yǐhòu , tā yòu gěi chēzhóu jiā le yìdiǎn yóu , zhuǎn le jǐquān chēlún 。装好以后,他又给车轴加了一点油,转了几圈车轮。After installing it, he added a little oil to the axle and spun the wheel a few times.