He died in unexplained circumstances.他死因不明。Soon after leaving Margate, for some unexplained reason, the train was brought to a standstill.离开马盖特不久，不知什么原因，火车突然停了下来。Soon after leaving Margate, for some unexplained reason, t...
物理学研究力学、热学 、 光学 、 声学和电学.Physics studies mechanics , heat, light, sound and electricity.这两个学生都做了不少电学实验.Both students have made quite a few experiments on electricity.从量子电动力学可以得出所有已知的电学 、 力学和化学定律.Out of quantum electrodyna...
只用上好的木料和饰面板。Only the finest timbers and veneers are used.进入“控制面板”双击“语音”图标就能看到所有的声音选项。Go to Control Panel and double-click on Sounds for a list of sounds.在门厅里，格林菲尔德茫然地看着木质面板。In the hallway Greenfield was staring at the wo...