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一种善行没有内心的支持就不会长久,一种行为如果得不到自身的了解就无法树立。
The power of randomness in algorithms is often underestimated.
广告的目的是销售。这是唯一的目的。
A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.