To left-click is to press the left button of a computer mouse — for most people, the button under the index finger. That is the ordinary click: you left-click to choose something, open a file, or press a button on the screen.

To left-click is to press the left button of a computer mouse就是按滑鼠的左鍵——for most people, the button under the index finger對大部分人來說，就是食指下面那顆按鈕。That is the ordinary click那就是一般的點擊：you left-click to choose something, open a file, or press a button on the screen你用左鍵點擊來選東西、打開檔案，或按螢幕上的按鈕。

The other button is a right-click, which usually opens a small menu of extra choices. On a laptop the same idea lives on the trackpad.

The other button is a right-click另一顆按鈕是right-click（右鍵），which usually opens a small menu of extra choices通常會打開一個有額外選項的小選單。On a laptop the same idea lives on the trackpad在筆電上，同樣的概念用在觸控板上。

The word is mainly a verb (Left-click the icon), though people also say a left-click as a noun. It belongs only to computer talk.

The word is mainly a verb (Left-click the icon)這個字主要是動詞（Left-click the icon），though people also say a left-click as a noun不過人們也會把a left-click當名詞用。It belongs only to computer talk它只用在電腦相關的用語裡。

Though actually, some mice swap the buttons for left-handers, so in software “left-click” still means the main button even when it is no longer on the left side of the mouse.

Though actually不過其實，some mice swap the buttons for left-handers有些滑鼠會為左撇子把按鈕對調，so in software "left-click" still means the main button所以在軟體裡「left-click」指的還是主要按鈕even when it is no longer on the left side of the mouse就算它已經不在滑鼠的左邊了。