保持手臂伸直
Keep your arms straight
以上为机器翻译结果，长、整句建议使用 人工翻译 。
使用夹板在夜间保持手臂伸直也有帮助。
Keeping the elbow straight at night with a splint also may help.
youdao
u保持手臂伸直，把手掌朝身体两侧慢慢降低。
Keep your arms extended and slowly lower your hands to either side of your body.
延伸手臂向前，保持手肘伸直。
Stretch arms forward, keep elbows straight.
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