variable

多變的、易變的、不穩定的

The weather in the mountains is highly variable this time of year.

這個季節山區的天氣變化非常大。

可變的、可調的

The fan has three variable speed settings.

這台風扇有三段可調的速度。

參差不齊的、不一致的

The quality of their service is rather variable.

他們的服務品質相當參差不齊。

變數、變因、因素

Weather is the biggest variable in planning an outdoor wedding.

天氣是籌備戶外婚禮時最大的變數。

變數、未知數數學、電腦

You need to declare the variable before you can use it.

你必須先宣告這個變數才能使用它。