Throughout the exercise, focus on keeping your abs tight.整个锻炼过程中，注意要紧绷腹肌。an anti-lock braking system or ABS防抱死装置ABS piping is normally used in High Purity DI Water System.ABS配管通常使用于高纯度的DI水系统....
反应敏捷的电台台长们用哔哔声盖过了辱骂声。Quick-thinking TV bosses bleeped out the abuse.微波炉烹饪完毕时会发出哔哔声提醒你。The microwave beeps to let you know when it has finished.当我们把船调头的时候，信号器又不停地发出哔哔声。When we turned the boat about, the signal began to bl...