- A nebula, such as the Ring Nebula, consisting of a hot, blue-white, central star surrounded by an envelope of expanding gas.行星状星云：由一颗炽热的、蓝白色的中心恒星和包围它的一层向外膨胀的气体组成的星云，如环状星云
- bellboy
- bell buoy
- bell captain
- bell curve
- belle
- Belleau Wood
- belled
- Belle Fourche
- Belle Glade
- Belle Isle
- Bellerophon
- belles
- belles-lettres
- belletrist
- belletrists
- Belleville
- Belleville Area College
- Bellevue
- Bellevue College
- Bellevue Community College
- belle époque
- belle–lettrist
- bellflower
- Bellflower
- Bell Gardens
- 壅阻
- 壅隔
- 壆
- 壇
- 壇字在成语中的位置
- 壈
- 壈坎
- 壈组词
- 壉
- 壊
- 个性早安签名
- 校园个性签名句子
- 孤独个性签名
- 失去个性签名句子
- 失恋个性签名
- 伤感个性签名40条
- 个性伤感签名75条
- qq伤感个性签名60条
- 个性伤感签名75条
- 失望个性签名
- 护士长个人述职报告
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