你往上走的时候，差一点就踩到了带着一群孩子的鹌鹑母亲，它们正鸣叫着稀稀拉拉地往灌木丛走去。

And as you went up you nearly trod on a mother with her dozen or more little baby quails and they scattered with chirping into the bushes.

youdao

这群头上长著一丛毛的企鹅在入冬后就出海展开年度觅食，次年春天回来繁殖。

The tufty-headed penguins headed out to sea at the onset of winter for their annual forage and returned on the following spring to breed.

youdao

然后，我们将看到微分同胚群作用下的辛商为特殊子流形模空间上的以环面为结构群的丛。

And then we will see that in the framework of diffeomorphism group the symplectic quotient is torus bundle over the moduli space of special submanifold.

youdao