So an introduction is not only valuable for those of us who simply wish to acquire knowledge.
所以入门课不仅对那些,想获取知识的人很有价值。
I'm not clear that that kind of knowledge gives a whole lot of value to your life.
我不是很确定,这种知识会给你的生活带来多少价值。
After all, not every bit of knowledge is equally valuable.
毕竟,并非所有知识都价值相等。
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