The school rules must be obeyed.
学校的规定必须遵守。
The school rules must be obeyed.
一定要遵守这个时间表。
The school rules must be obeyed.
我们都必须遵守法律。
The school rules must be obeyed.
人人必须遵守法律。
这些规章制度必须遵守。
The law set down that traffic rules must be obeyed.
法律规定，交通规则必须遵守。
Rules have been set down and must be obeyed.
规章已经制定，必须加以遵守。
Rules have been set down and must be obeyed.
一些司机不遵守时速限度规章。
Rules have been set down and must be obeyed.
一些司机不遵守时速限度规章。
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