Not so much that your elbows are on your knees, but enough so you aren't reclined back on your chair.
把手肘撑在膝盖上，正正好好地能让你不倒回你的椅子，但也不要老是撑着。
The elbows should be bent throughout the underwater cycle so that again, they are positioned higher in the water than the hand.
水下划水的整个过程中肘关节应该维持弯曲状态，这样肘关节的高度依然高于手的高度。
Now cross at the elbows and try and press the palms, you can even just take the back of the hands together, so there's that tension in the shoulders.
双臂在肘部交叉，试着将手掌相贴，你甚至可以做到将手背相贴，你会感到肩部肌肉绷紧了。
Put your palms together in front of you, your elbows pointing out the sides, your fingertips pointing upward, and push so that you feel pressure in the heels of your palms and under your arms.
双掌在前方合在一处，双肘向外侧探出，十指尖向上，之后向前推，这样你会感到掌根处和腋下有压力。
Put your palms together in front of you, your elbows pointing out the sides, your fingertips pointing upward, and push so that you feel pressure in the heels of your palms and under your arms.
双掌在前方合在一处，双肘向外侧探出，十指尖向上，之后向前推，这样你会感到掌根处和腋下有压力。
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