Does this correspond with or contradict his earlier ploys?这与他之前的表现相符或冲突?Young children should never contradict what their parents say.孩子们绝对不应顶撞父母.'Don't contradict your mother,' was Charles's sharp re...
如果使用得当，避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.虽然多数避孕套含有杀精剂，但也有一些是不含的。Although most condoms contain spermicide, there are some manufactured without.想到老师将分发避孕套给学生使一些家长愤慨不已。The prosp...
This paper investigates the integrable inhomogeneous generalized Heisenberg ferromagnet model by using the prolongation structure theory.摘要利用延拓结构研究了可积的非均匀推广的海森堡铁磁链方程.Bohr's unposted letter was written in response to...
Conservationists are mostly wedded to preserving diversity in nature.自然环境保护主义者大多致力于保持物种的多样性。creatures existent in nature自然界中现存的生物They felt that all the regularities in nature have a purpose.他们感到自然界一切有规律的事物均有目的性....