Contrary to popular belief, SQL is not a difficult language to learn.
和普遍的观念相反，SQL不是难以学习的语言。
This is a popular expression that is worth the time to learn.
这是一个值得花时间去学习的流行表达。
To learn a popular craft go, such as cooking, learn this prospect is possible.
去学习一个热门的手艺去吧，比如说厨艺，学好这个之后前景是可以的。
English is obviously the most popular international language, but it is very difficult to learn.
英语显然是国际上最流行的语言，但英语很难学。
English is obviously the most popular international language, but it is very difficult to learn.
英语显然是国际上最流行的语言，但英语很难学。
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