中心力是由球对称的势能函数而来的力.A central force is one derived from a potential - energy function that is spherically symmetric.有心力是一种径向力,它的大小只取于离原点的距离.A central force is a radial force which depends only on the distance from the orig...
暖风让很多人觉得乏力沮丧。Warm winds make many people feel enervated and depressed.该国的经济问题很大程度上是因为复苏乏力。The country's economic problems are largely due to the weakness of the recovery.语言生动见之于语言功底;语言乏力出自泛泛而论.Vigor or weakness resu...
在那家饭店用餐能欣赏到湖边景色，而且那里饭菜也是美味佳肴。The dining room has lakeside views and offers excellent cuisine.一道又一道令人垂涎的当地佳肴端到了我们的面前。We were served course after course of mouthwatering local delicacies.晚饭就着鲜脆的色拉尝尝这道佳肴。Try this tasty dish...
The newspapers accused local police of laxity in dealing with gamblers.报纸指责当地警察在对付赌徒方面执法不严.Gamblers are incorrigible optimists.嗜赌的人是死不悔改的乐天派。Most compulsive gamblers are not successful.多数嗜赌成瘾的赌徒都常赌输.Most people have a lo...