His stool once a day, pull out a yellow or yellow-white of the tried, but have tried a lot of middle Black squeezings like things, I do not know how the matter has been a long time.
他每天一次大便，拉出来的是黄色或是黄白色的便便，可是便便中间有很多黑渣子似的东西，不知道是怎么回事，已经很长时间了。
His stool once a day, pull out a yellow or yellow-white of the tried, but have tried a lot of middle Black squeezings like things, I do not know how the matter has been a long time.
他每天一次大便，拉出来的是黄色或是黄白色的便便，可是便便中间有很多黑渣子似的东西，不知道是怎么回事，已经很长时间了。
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