Situations where the use and wont of their fathers no longer meet their necessities" J. A."
“他们父辈的习惯性作法无法解决他们的困难情况”。
Learnthe fundamental rules and use them and you wont be left in the technological dust21.
学习上述基本规则，并加以使用，你就不会在技术上落伍。
Learnthe fundamental rules and use them and you wont be left in the technological dust21.
学习上述基本规则，并加以使用，你就不会在技术上落伍。
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