养狗最重要的原因是他们在城市里感到孤独。
The most important reason for keeping dogs is that they feel lonely in the city.
用户研究的最重要的原因是获取用户的心智模型。
The most important reason to do user research is to get information about users' mental models.
最重要的原因是从显式导入和导出中获得的速度收益。
The most important reason is the speed gains from having explicit import and exports.
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