They are studied in order of importance.
它们是按轻重缓急的顺序来研究的。
These matters are in order of importance.
这些事情是按其重要性排列的。
Rank tasks in order of importance and write down.
按照重要级别对任务进行排位，并且写下来。
This list is in no particular order of importance.
这个清单排名重要性不分先后。
Organize the secondary material in order of importance.
根据重要性的顺序组织次要材料。
Organize the secondary material in order of importance.
根据重要性的顺序组织次要材料。
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