Centroids
(centroid 的复数) n. 质心\\n[机] 瞬心线
🗣️ 情景例句
can be picked up at the Riverdale Press offices.
可以到Riverdale Press各办事处索取。
The school is two miles straight ahead.
那学校一直向前两英里。
But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten.
但是，和我们相似的原始人生活的年代太久远了，因此，有关他们的传说既使有如今也失传了。