puff-ball

基本解释

The rare comet remains visible to the unaided eyes of northern observers as an unusual small puff ball in the constellation of Perseus.
对于北半球的观测者来说，很少会有彗星像一颗不寻常的蓬松小球一样出现在英仙座内，并且长时间肉眼可见。
I could identify ink caps, puff balls and field mushrooms and knew where to find wild watercress and sorrel.
我会辨认一些野山菌和蘑菇，我也知道在哪可以找到野西洋菜和菠菜。
The old man manage to puff out a few words.
那老人好容易喘著气说出几句话。
The stove let out a puff of smoke.
炉子里冒出一股烟。
The stairs made him puff like a grampus.
爬楼梯爬得他气喘如牛。