原则: principle 短语和例子原则分歧 differences in principle; 原则上同意 agree in principle; 原则问题 a matter of principle; 原则性(的)错误 mistake in matters of principle; 基本原则 basic principle; axiom; 原则立场 principled s
空中: in the sky; in the air; aerial; overhead; midair 短语和例子在空中翻筋斗 make a somersault in midair; 在大战期间伦敦受到来自空中的袭击。 during the great war london was attacked from the air. 首次在空中航行的飞行器是气球。 the first
