例句與造句

1. The galaxy Messier 101 ( M101, also known as NGC 5457 and nicknamed the Pinwheel Galaxy ) lies in the northern circumpolar constellation, Ursa Major ( The Great Bear ), at a distance of 25 million light-years from Earth.
2. However, the SIMBAD Astronomical Database, a professional astronomy database that contains formal designations for astronomical objects, indicates that the name Pinwheel Galaxy is used to refer to Messier 101, and several other amateur astronomy resources and other public outreach websites also identify Messier 101 by that name.
3. However, the SIMBAD Astronomical Database, a professional astronomy database that contains formal designations for astronomical objects, indicates that the name Pinwheel Galaxy is used to refer to Messier 101, and several other amateur astronomy resources and other public outreach websites also identify Messier 101 by that name.
4. It's difficult to find messier 101 in a sentence. 用messier 101造句挺難的