After investigation: use a mute oil free compressor users have offered to give the recommendation of a friend such air compressor!

经过调查：使用过静音无油空压机的用户都纷纷表示愿意给朋友推荐此类空压机！

youdao

As for the recommendation of skin care, it is certainly Oil of Olay!

至于护肤品推荐嘛，当然是玉兰油啦！

youdao

Air cleaners should be removed periodically and the filter element washed, the usual recommendation is that this should be done every time the engine oil is changed.

空气滤清器应定期更换，滤芯应进行冲洗。通常建议每次发动机换油时都应这样做。

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The U.K. Chancellor recommended that auditors be installed into the new Nigerian Government's Central Bank, the State owned Oil Company and the Ministry of Finance - a recommendation long discussed by our Centre with President Obasanjo.

BBC: Why debt relief will not benefit poor