cylinder 圆柱体
The little worm tries to climb on the cylinder but falls.
那个小虫试着爬上这个圆柱体但是却滑了下来。
sector 扇形
Goldfish is really beautiful, it is the head of the sector, and has a pair of chubby little eyes, like two colorful lollipop.
金鱼十分漂亮，头是扇形的，有着一双圆滚滚的小眼睛，好似两个彩色的棒棒糖。
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