例句與造句

1. Observations over the decades have shown that its colour slightly changes and it exhibits variation in light that indicate the star is actually an ellipsoidal binary with a period of seven days . The system is more luminous than expected, given the spectrum and distance of the primary star, indicating that the companion star must be contributing a good proportion of its light.
2. It's difficult to find ellipsoidal binary in a sentence. 用ellipsoidal binary造句挺難的