No other kind of electric charge has been found.到现在为止,还没发现其他种类的电荷.Electric charge may be detected qualitatively by sprinkling or blowing indicating powders.静电荷可以用撒布指示粉剂的方法,予以探测.They have no electric charge and are comple...
很难确切知道这场悲剧的严重程度.It's difficult to grasp the sheer enormity of the tragedy.我们的喜剧是对莎士比亚一出悲剧的讽刺性模仿.Our comic play was a burlesque of a Shakespearean tragedy.悲剧或近乎悲剧的事经常发生.Very often tragedies or near tragedies occurred...
Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.火星的大气层极其稀薄，几乎全部由二氧化碳构成。The planet Mars will be visible to the naked eye all week.整周都可以用肉眼观察到火星。He stole a Mars bar from the school tuck s...