Iapetus
n. 伊阿珀托斯（希腊神话中十二提坦神之一）；（天）土卫八
例句
Its flattened shape implies that Iapetus once spun very quickly, completing a rotation in 16 hours.
它扁平的形状意味着土卫八曾经旋转得非常快，完成一次自转需要16个小时。
The ingredients of Iapetus are also peculiar.
它的组成也是非常的奇特。
EVEN a cursory glance at Saturn's moon Iapetus reveals it to be an oddball.
甚至只是对于土星的卫星土卫八粗略地一瞥，也足以表露出它的古怪。
