这张看上去像艺术家创作的太阳图，实际上是人类的卵细胞。
What looks like an artist's rendering of the sun is actually a human egg cell.
随着罗马帝国向北扩张，它构建活动图的大部分时间是在太阳年前后。
As the Roman Empire expanded northward, it organised its activity chart for the most part around the solar year.
哪张图显示了使用太阳能电池板后电力成本的变化？
Which picture shows the change of the electricity cost after the use of solar panels?
应用推荐