prime考研四级六级 /praim/

When Hoffa's Teamsters were in their prime in 1960, only one in ten American government workers belonged to a union; now 36% do.

当霍法的国际卡车司机工会在1960年达到鼎盛时期时，只有十分之一的美国政府工作人员加入了工会；如今，这一比例已达到36%。

Feasibility should be a prime concern in policymaking.

可行性应在政策制定中成为首要关注点。