Chinese white dolphins are estuary specialists. Found widely in the Indian and Pacific Ocean, this species is rare in China.
中华白海豚堪称河口生活的专家，广泛分布于印度洋和太平洋的中华白海豚在中国非常少见。
The young are born dark grey and become spotted as adolescents, finally turning creamy white as adults, though on some occasions they may blush a delicate shade of pink.
幼豚出生时呈深灰色，长大后出现斑纹，最终成年后转为乳白色，有时候他们也可能呈现出浅粉红色。

注：视频如无法播放，请刷新

重点讲解：

on some occasions

有些时候；在一定情况下；

eg. On some occasions, a bit of cash will help.

有些时候，一点现金会有用。

eg. Women become illogical when it comes to choosing the dress they will wear on some occasions.

在某些场合决定着装形式的时候，女性往往变得不合情理。