Forearms can either be placed on the table or in your lap. Always sit up straight.
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always sit up straight
坐直
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Always remember to sit up straight, with your head in a level position, not bent forward, with the top of your computer screen just below eye level.
FORBES: Five Tips to Reduce Neck and Shoulder Pain When Using a Tablet or Computer
应用推荐
模块上移
模块下移
不移动