1. The eccentricity of the planet's orbit is what causes the variation in its distance from the sun.
这颗行星轨道的离心率导致其与太阳的距离变化。
2. Her eccentricity and unconventional fashion sense made her stand out in the crowd.
她的古怪行为和非传统的时尚品味使她在人群中脱颖而出。