Seyfert galaxy
[天] 塞佛特星系（等于Seyfert）
🧩 词语组成解析
n. 赛弗特星系
🗣️ 情景例句
We had a good day.
我们今天玩得很开心。
To strive, to seek, to find, and not to yield.
要奋斗，要探索，要有所发现，而不要屈服。
That's very nice of you.
你真是太好了。