So bring stained garments to the cleaners as soon as possible. Carrying around corn starch or talcum powder isn't a bad idea either, because both will aid in removing oil based stains.

所以尽快把弄脏的衣物送去干洗，随身携带玉米淀粉或者滑石粉也是个不错的办法，因为这两种粉末都有助于去除油性污渍。

youdao

So I just guess the white powder should be the launder powder or other alkalescent chemical. Right or not, maybe you have more idea?

所以，估计香蕉皮上的白色粉是洗衣粉，或类似的碱性物质。分析得对否，请教大家！

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Forbes: For people in the U.S. and the West, the idea that Chinese companies would knowingly sell milk powder that was tainted and harmful to children is appalling.

FORBES: On The Front Line In China: Challenging Business Ethics