Ubuntu has done a lot to popularize sudo by enforcing its use in place of encouraging users to use su to switch to the root account to install software and perform other administrative tasks.
Ubuntu在普及sudo上做了不少工作，强迫而非鼓励用户使用su转换到root帐号安装软件和执行其他管理任务。
The United States, Britain, Japan, Su, middle-income countries have conducted a lot of research and application of the.
美、英、苏、日、中等国家先后对其进行了大量研究及应用。
Chinese Su-known as the "mother of gardens in the world," has a lot of resources, particularly in the flower-rich areas is unusual.
中国素被誉为“世界园林之母”，拥有大量的资源，特别在花卉方面更是异常丰富。
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