Aliens, if they exist, are most likely to live along the line between shadow and light, a temperate region known as the terminator, the scientists said.
“如果上面真有外星人，他们可能会住在昼夜分割线附近，这样就可以随意穿梭于黑夜与白昼之间了。”某科学家如是说。
For the most convincing look, assume the light source to be at the top left of the page - the shadow should simply be a thick grey line along the bottom and up the right edge of your shape.
为了更好看，在页面的左上方加上光源-阴影应该是沿着你形状的右边缘的上部和底部勾勒出粗的灰线条。
There are a few line chart options that are specific to a linear chart, like markers (show data points), tension (make the lines curvy), and shadows (give each line a drop-shadow).
有几个专门用于线性图表的折线图选项，如标记(显示数据点)、张力(使直线弯曲)和阴影(给每条线一个下拉阴影)。
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