puffballs
n. 尘菌;羽状实;马勃
复数 puffballs
例句
Some of these stellar puffballs are almost round, resembling huge soap bubbles or giant planets (hence the name), but others, such as NGC 5189 are more intricate.
这种星云有的像巨大的气泡或者圆形的巨行星(由此得名),但像NGC 5189那样的则极为复杂。