In order to facilitate bile extraction, the bears undergo an invasive surgical procedure where a permanent wound is created in their gall bladder and abdominal wall.

为了抽取胆汁，要在取胆黑熊的腹部通过手术制造一个长期不能愈合、深入腹腔直达胆囊的伤口。

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In order to facilitate bile extraction, the bears undergo an invasive surgical procedure where a permanent wound is created in their gall bladder and abdominal wall.

为了抽取胆汁，要在取胆黑熊的腹部通过手术制造一个长期不能愈合、深入腹腔直达胆囊的伤口。

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