对，你知道，两条平行线无限延伸但永不会相交，其实他们在现实中并不存在。
Yea know , two lines go on and on forever, and never touch. Yea . Cept , cept they don't actually exist in nature .
对，你知道，两条平行线无限延伸但永不会相交，其实他们在现实中并不存在。
Yea know , two lines go on and on forever, and never touch. Yea . Cept , cept they don't actually exist in nature .
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