A teacher's job is relatively safe, even if they perform under par in the classroom.

教师的工作是相对保险的，即使他们在教室里的表现低于预期的标准。

《柯林斯英汉双解大词典》

Before we climb, we perform religious ceremonies to ask god for permission and a safe passage.

在我们攀登之前，我们会举行宗教仪式，向上帝请求许可和安全的通过。

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You can make commands safe to import, however, by protecting the actual actions they perform with an if statement that checks whether the module is being run or simply imported.

但是，可以用一个if语句检查模块是直接运行还是导入，从而保护它们执行的实际操作，这样就可以安全地导入命令。

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