adv.水平地,横地;
例句:
You can move the camera both vertically and horizontally.
你可以上下左右移动摄像机。
The wind was cold and drove the snow at him almost horizontally.
寒风凛冽,雪花几乎是朝他扑面而来。
When mounted horizontally, the hot end does not need to be supported.
在水平安装时, 发热部不需要任何东西支撑.