动作的

The three children have been sponging on their grandparent for over ten years.

前者是一直在做，表示动作的持续状态，后者是已经做了，表示动作的完成

Have been doing sth.---the present prefect progressive.

现在完成进行时，强调动作的持续性，表示从过去某段时间以来开始进行的某个动作，延续到说话时，有可能还要进行下去。

1 The Difficulty of each skill is calculated on the basis of the amount of twist and somersault rotation.

每一弹动作的难度，主要是基於动作本身的转体周数及空翻周数。

The wing-over is probably the most difficult maneuver, and for sure the basis for all aerobatic maneuvers.

摆荡可能是所有动作中最难的一个，当然它又是所有特技动作的基础。

Through detailing the maloperation process of the circuit breaker because of the defect in the auto-reclosure,this paper analyses the course of the accident and improves the defective protections circuit.

通过对一起重合闸缺陷引起断路器误动作的过程详细描述，分析了误动原因，对有缺陷的保护回路提出了改进方法，较好地解决了重合闸误动作问题，提高了设备运行稳定性。

This is a combination of learned balance, and a very productive sculling action that produces enough velocity for his feet to stay high in the water.

这一小动作是掌握平衡与有效划水动作的结合，可以产生足够的速度，使双脚在水中保持较高位置。

Aiming at fault of operating cycles counters of LW10B-252 circuit breaker in certain substation,it was proposed that the fault counters were found by using counters loop air circuit breaker to simulate motion of circuit breaker when the counters loop in good connection.

针对某变电站LW10B-252型断路器动作计数器故障问题，提出在该计数器回路接线良好条件下，采用其回路的空气开关模拟断路器动作的试验方法查找故障计数器。

The control action categories: suitable for moderate to severe varus-type feet, as well as people with higher body weight, it can enhance the runners on the heel and running motion control, and can support the arch area.

控制动作类：适合中度至重度内翻型脚，以及体重较高的人，它能提高跑步者对脚跟和跑步动作的控制，并能支持足弓部位。

Zhang Dan and Zhang Hao, who won silver in the 2006 Olympics, made theirmark by performing the first quadruple twist and are still one of thefew pairs that perform it. The Chinese pair that won the bronze in 2006,Shen Xue and Zhao Hongbo, are the same pair that attempted to land theworld's first quadruple-throw salchow at the 2002 Olympics (Ms. Shenfell after landing).

2006年冬奥会银牌得主张丹/张昊曾在花样滑冰领域率先做出了四周跳这样的高难动作，目前能完成这个动作的选手仍然寥寥无几。2006年铜牌得主中国选手申雪/赵宏博也曾经试图在2002年冬奥会完成世界首个沙霍夫四周抛跳，但申雪在落地时不幸摔倒。

Skiers who want to do this trick should practice first either on a trampoline or a diving board before trying it out on a snow slope.

想学习这个动作的滑雪爱好者在雪道上正式练习前，应当先在蹦床或者跳水板上熟悉此动作。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。