游泳者

She is a very good swimmer and often races .

她是一位非常好的游泳者，并且经常参加比赛。

With their slightly webbed paws and powerful muscles, polar bears are excellent swimmers.

用它们的轻微的有蹼的爪和强有力的肌肉，北极熊是最好的游泳者。

"Supraspinatus tendinopathy is a specific diagnosis needs an MRI scan to demonstrate high signal intensity in the tendon without a frank tendon tear," lead author Justin Alan Paoloni, MBBS, PhD, from the Orthopaedic Research Institute at the University of New South Wales in Sydney, Australia, told Medscape in an email interview."It is a common problem, especially in overhead athletes (pitchers, tennis players, and swimmers) and workers, and is thought to be due to a combination of specific anatomical factors (subacromial impingement, anterior glenohumeral instability, often coexisting with tendinopathy) and relative overuse (repetitive shoulder motions, fatigue)."

澳洲University of New South Wales的医师Justin Alan Paloni表示，岗上肌肌腱炎在没有明显肌腱破裂的情况下，需要使用MRI的高密度讯号扫描，作特定的诊断才可以发现；这对某些族群的人而言是个普遍的现象，尤其是需要作手部举高动作的运动员，如棒球投手、网球运动员、游泳者及从事绘画、机器修复的人员；这个病徵是许多症状的组合，如下滑囊伤害、前肱肩胛骨不稳定等，都会引发随著肌腱病变；此外，过度的肩膀运动及疲劳也是原因。

"Supraspinatus tendinopathy is a specific diagnosis needs an MRI scan to demonstrate high signal intensity in the tendon without a frank tendon tear," lead author Justin Alan Paoloni, MBBS, PhD, from the Orthopaedic Research Institute at the University of New South Wales in Sydney, Australia, told Medscape in an email interview."It is a common problem, especially in overhead athletes (pitchers, tennis players, and swimmers) and workers, and is thought to be due to a combination of specific anatomical factors (subacromial impingement, anterior glenohumeral instability, often coexisting with tendinopathy) and relative overuse (repetitive shoulder motions, fatigue)."

澳洲University of New South Wales的医师Justin Alan Paloni表示，岗上肌肌腱炎在没有明显肌腱破裂的情况下，需要使用MRI的高密度讯号扫描，作特定的诊断才可以发现；这对某些族群的人而言是个普遍的现象，尤其是需要作手部举高动作的运动员，如棒球投手、网球运动员、游泳者及从事绘画、机器修复的人员；这个病征是许多症状的组合，如下滑囊伤害、前肱肩胛骨不稳定等，都会引发随著肌腱病变；此外，过度的肩膀运动及疲劳也是原因。

The swimmers were randomly assigned to either the contingent reinforcement group, who received music for productive behavior, or the noncontingent group, who received music regardless of their training productivity.

游泳者们被随机指派至，偶然强化组，接受可促进成效性行为的音乐；或是非偶然组，接受无关於他们训练之成效性的音乐。

The swimmers were randomly assigned to either the contingent reinforcement group, who received music for productive behavior, or the noncontingent group, who received music regardless of their training productivity.

游泳者们被随机指派至，偶然强化组，接受可促进成效性行为的音乐；或是非偶然组，接受无关于他们训练之成效性的音乐。

Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble.

第三十九篇泳池监护如果救生员没有注意到游泳者遇到了麻烦，那么他们可能会在人多的游泳池里淹死。

Instead, one sculls the hands back and forth near the surface. The legs and feet are making similar movements. This results in the production of lift, which in turn keeps the swimmer's head above water.

实际上，常见的动作是手从靠近水面处的位置上下移动，腿和脚的动作也相似，这样，浮力产生了，这个浮力就可以帮助把游泳者的头部维持在水面之上。

And finally in lesson four you will learn to combine butterfly and breaststroke in ways that will help you flow through the water in either stroke with ease and grace that few simmers ever attained.

最后，也就是第四课，将学习蝶泳结合蛙泳的多种方法，这将使你用任意泳姿都会得心应手，这也是多数游泳者难以企及的梦想。

I would be wary of selling it on to people because there is the danger that after submerging you could hit a boat or a swimmer.

在把它出售给别人时，我会非常小心。因为当你驾着它潜水的时候，你有可能撞上别的船或游泳者。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。