atratus伸展它们的腿提高，然后降低其“柄后腹,”身体后段,即尾部。

C. atratus stretches its legs out, raises them, and then lowers its "gaster," the posterior body segment: the butt.

youdao

atratus伸展它们的腿提高，然后降低其“柄后腹，”身体后段，即尾部。

C. atratus stretches its legs out, raises them, and then lowers its "gaster, " the posterior body segment: the butt.

youdao