别胡闹了，我们还是收收心想想要紧事吧。Let's get down to basics and stop horsing around.整个锻炼过程中，注意要紧绷腹肌。Throughout the exercise, focus on keeping your abs tight.“那并不要紧，”坦奇漠然地说。"Not that it matters," said Tench indifferently....
兴奋性刺激超过某一临界值以前毫无反应.Nothing happens until the excitatory stimulus exceeds a certain'threshold'value.临界点所对应的刺激强度为临界值.The ceitical valueis stimulus intensity corresponding to the critical point.因为9.55>3.78, 其中3.78...
The caffeine in coffee can jangle the nerves.咖啡中的咖啡因会使神经紧张。We react to stresses such as the jangle of telephones or the wailing of police sirens.我们对于电话的叮铃声,警笛的尖啸声之类使人紧张的情况总要作出反应.When the strangled wrangler dangles the ma...