全部

1·In addition, the human is at the same time there are head lice pubis and the only primates.

此外，人类也是同时长有阴虱和头虱的唯一一种灵长类动物。

2·Use your hands to spread the back pelvis and lengthen it down through your tail bone. Then lightly firm the tail forward, toward the pubis.

用你的手去延伸骨盆后侧并通过尾骨向下进一步拉长它。