例句與造句

1. First Period _ 1, New York, Messier 20 ( Fleury, Kloucek ), 18 : 28.
2. First Period _ 1, New York, Messier 20, : 58.2, New York, Ferraro 14 ( Robitaille, Sundstrom ), 19 : 22.
3. Sagittarius contains several well-known nebulae, including the Lagoon Nebula ( Messier 8 ), near ? Sagittarii; the Omega Nebula ( Messier 17 ), also known as the Horseshoe Nebula or Swan Nebula, near the border with Scutum; and the Trifid Nebula ( Messier 20 ), a large nebula containing some very young, hot stars.
4. It's difficult to find messier 20 in a sentence. 用messier 20造句挺難的