External monitor mounting bracket, hidden keyboard tray placed.

外置式显示器安装支架，键盘放置托架。

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If it doesn't, adjust your seating position, or ask for a keyboard tray.

如果键盘的位置不合适就调整你的椅子位置或者弄一个键盘托。

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Elbows should be at a 90-degree Angle. Again, a keyboard tray can work wonders here.

肘部应保持90度的角度，同样的，一个键盘托盘可能会非常有用。

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When ergonomics took off in the mid-1990s, King came up with a keyboard tray that had no knobs.

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