我想起来了这学期上综合课的时候老师教我们叠幸运星，我可以给妈妈送一些幸运星啊！
However, I can imagine, on the day 18 years ago, when you gave birth to me, what a complex feeling you had.
二叠纪大灭绝事件比其他大灭绝事件受到的关注要少得多，因为那时灭绝的大多是我们不熟悉的物种。
The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.
使用的颜色很重要，因为我们要给将图层模式设置为正片叠底，这样做是为了让文字背后深色的木头质地显现出来。
The color is important because we're going to set it to Multiply to get a nice darkening of the wood texture behind it.
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