Sometimes primary group relationships evolve out of secondary group relationships.

有时主要的群体关系从次要的群体关系演变而来。

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One of government's primary duties is the redistribution of income, so that the better off can help the worse off out of poverty.

政府的主要职责之一就是收入的重新分配，这样富裕的人能帮助贫穷的人摆脱贫困。

《柯林斯英汉双解大词典》

The service is designed to make it easy to clear non-critical messages out of your primary in-box.

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He took office in 1998 by edging out a 10-candidate primary field with 23 percent of the vote.

CNN: Death gives Massachusetts 1st open Senate seat in decades

Although participation is increasing at secondary level, the report finds that only 54 percent of secondary school-age youth are enrolled, leaving an estimated 20 million "out-of-school" or still in primary classes.

UNESCO: HIGH DROP OUT AND REPETITION RATES SHOW QUALITY TO BE A CONCERN IN LATIN AMERICAN EDUCATION SYSTEMS