In the third chapter, we study mainly iterative roots of piecewise homeomorphic maps of an Y-star.

在第三章，我们主要研究了Y星上逐片同胚映射的迭代根的问题。

youdao

The sun's newfound neighbor and five other supercool brown dwarfs belong to a class of failed star called Y dwarfs.

为太阳新发现的这个邻居和其他五个超冷褐矮星都属于一个称为“Y矮星”的系列，是“不成功”的恒星。

youdao

Oh, my y friend, do you like stars? If you feel lonely far away from home, look up at the stars in the sky, where there is a star for luck that I've send you.

朋友，你喜欢星空吗? 有一天你在远方流浪时感到孤独、忧郁，请抬头看看星空，那儿有我送给你的幸运星。

youdao

Y-class star, at least from a spectroscopic point of view.

ECONOMIST: Twinkle, twinkle, giant planet

Although Billy Crystal, the star and moving force, still gets a mite dewy-eyed and message-y (this time about brotherly love), he manages to parody as well as act out the fantasies and sensitivities of fortyish urban males.

NEWYORKER: City Slickers II: The Legend of Curly��s Gold