常見(jiàn)例句雙語(yǔ)例句Particularly rich sites are the extremities of flat, long and irregular bones(e. g. the pelvis).其中四肢頂端長(zhǎng)形扁平不規(guī)則的骨頭（比如骨盆）里面分布最多。blog.sina.com.cn 返回 flat pelvis