Poor personal hygiene (such as wiping from back to front after a bowel movement) may also cause this problem.

不注意个人卫生(例如大便时从后往前擦拭)也能引起这类问题。

youdao

Far from the farmer bearing the heartache of a colt dying in his arms or poor weather wiping out a crop, he has somehow managed to transfer the risk to you.

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