dark disc的用法和樣例：
例句
- In the center, the three huge dark dust lanes that give the Trifid its name all come together.
在星雲中央，三道巨大的塵埃暗帶會聚在一起，使這個星雲以三裂星云為名。
dark disc的相關資料：
臨近單詞
darkly
dark
dark operation in open tunnel
dark-colored femic minerals
darkroom for film development
Dark clouds were gathering.
dark object subtraction model
Darkness closed in upon us.
Dark hair and ruddy complexion
Dark clouds betoken a storm.
Dark learning in Weijin period
dark field illumination method
