原理: principle; tenet; axiom; theory 短语和例子根本的原理 a cardinal principle; 数学的基本原理 fundamentals of mathematics; 违反马克思主义的基本原理 contravene the basic principle of marxism; 详述 ... 的原理 develop the theory
准备: 1.(预先安排) prepare; get ready 短语和例子精神准备 mental preparation; 准备过几年紧日子 be mentally prepared for a few years of austerity; 准备接待外国游客 prepare to receive foreign visitors; 不打无准备之仗 fight no war unp
