因为正在使用很多昂贵的设备，所以我非常紧张。I get very nervous because I'm using a lot of expensive equipment.这些表达方式经常相互替代使用，但它们的含义却有所不同。These expressions are often used interchangeably, but they do have different meanings.他们使用武力把土著居民驱逐出...
He KO'd Nathan Mann in the third round.他在第3回合将内森·曼打晕了过去。Two Olympic table tennis silver medallists, Mr Li Ching and Mr Ko Lai - chak, attracted at HKIA.奥运乒乓双打银牌得主李静及高礼泽回港, 吸引大批群众前来机场欢迎." Well, what are you doing her...
For a system, Hamiltonian is invariant under any translation of spatial coordinates.对于一体系, 哈密算符在任何空间坐标变换下是不变的.In other words, The Hermiticity of a matrix is invariant under unitary transformations.换言之, 矩阵的厄密性在幺正变换下保持不变.O...