pygal的翻译，读音
英/'pi^әl/
释义：
a. [解]臀的, n.臀部
a. Situated in the region of the rump, or posterior end of the
backbone; -- applied especially to the posterior median plates in the
carapace of chelonians.
a. Situated in the region of the rump, or posterior end of the
backbone; -- applied especially to the posterior median plates in the
carapace of chelonians.