这些缺损可阻扰足够的氧气到达组织，所以皮肤会呈现青紫色。

Such defects can prevent enough oxygen from reaching the tissues, so the skin has a bluish cast.

youdao

这些缺损可阻扰足够的氧气到达组织，所以皮肤会呈现青紫色。

Such defects can prevent enough oxygen from reaching the tissues, so the skin has a bluish cast.

youdao