requirern.require的变形：require[ri'kwaiə]vt.要求：The police required the traveler to unlock his suitcase.警察要求这位旅客将手提箱打开。需要：How much money do you require?你需要多少钱?认为必需；感到要；想要：Will you require some cold drink?你想喝点冷饮吗?规定：All students are required to have a medical