最后，Patterns Explorer中的叶标签包含可以实例化的模式。

Finally, the leaf labels in the patterns Explorer contain patterns that can be instantiated.

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叶模式的图标是不同的，以表示可以实例化它们。

The ICONS are different for the leaf patterns to indicate they can be instantiated.

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20世纪下半叶，随着南方地区逐渐变得工业化，原本在农场里辛勤劳作的贫穷的阿拉巴马人得以勉强跻身中产阶级之列。

As the South industrialized in the second half of the 20th century, poor Alabamians who once toiled on farms were able to secure a toehold in the middle class.

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If Yeats's book was so explicitly Irish, look at this book.

如果叶芝的书是如此精致的爱尔兰化的话。

耶鲁公开课 - 现代诗歌课程节选