When you become more and more comfortable with this, you can lean back.
当你变得越来越这样舒服,你可以向后倾斜。
The monitor should be roughly at eye level so you can lean back in a chair with back support.
显示器应该大概和眼睛处于同一水平线,这样你就能往后靠在椅背上。
Lean against the lift wall closely with your back and head becomes one straight line.
第三、整个背部跟头部紧贴电梯内墙,呈一直线。
Lean against the lift wall closely with your back and head becomes one straight line.
第三、整个背部跟头部紧贴电梯内墙,呈一直线。
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