horizontal axis的用法和樣例：
例句
用作名詞 (n.)
- The line of sight must be approximately perpendicular to the horizontal axis.
視線必須近似地垂直於水平軸。 - Because the horizontal drag was the predominant user action, and vertical drags were rare, we biased the drag threshold towards the horizontal axis.
因為水平拖動是用戶的主要動作，而垂直拖動較少，所以我們將拖動閾值向水平軸傾斜。
