The summations of forces in this and that directions must be zero.在这个和那个方向上的合力必定为零.Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation.在表示“连加”的式子中,几乎一成不变地使用省略号来代替更为流行的“∑”符号....
I must learn to bite my lip...我必须学会不乱说话。Looking back helps insofar as it helps you learn from your mistakes.审视过去的作用是能帮你从错误中吸取教训。He doubted if he would learn anything new from Marie...他认为他不太可能从玛丽那儿学到任何新东西。Yes. My mother i...
Bloodroot is used for swollen lymph.血红根被用于肿胀的淋巴结.Any of several plants, such as the bloodroot, whose roots yield a reddish dye.'紫'.''''.'草'.''属植物如血根''.'草&#...
Each month the total prize kitty is £13.5 million.每个月的彩池奖金总额达1,350万英镑。Kitty's family was unworldly, unimpressed by power, or money.基蒂一家清心寡欲，淡泊金钱与权力。Three days into production, the kitty had run dry.才投产3天凑集的钱就用光了。...