n.星云;星云( nebula的名词复数 );星云状的星系;
例句:
The spiral nebulae are impressive objects.
旋涡星云是迷人的天体.
You can see nebulae in the clear summer sky.
在晴朗的夏夜可以看到天上的星云.
The nebulae, he said, were clouds of atoms and dust.
而星云, 他说, 是由原子和尘埃构成的云.