The forwardandback buttons are moved into the TAB bar, placing them in the top-left corner of the window.
“前进”和“后退”按钮也挪到了标签栏，就是窗口的左上角。
2
The movement of the bell is forwardandback, not up and down, with the goal to project the force forward and to resist by grounding into your feet.
壶铃的运动是前后方向的，而非上下，要实现此目的需要将力向前延伸，并通过双脚抓地来抵抗向前的拉力。
3
Her seat slides forwardandback on tracks in the center of the cockpit, which increases the OARS 'Angle of attack as they enter the water — making each stroke longer and more efficient.