The forecast is for changeable weather.
预报针对的是变化无常的天气。
The weather was very changeable last winter.
去年冬天天气变化无常。
My boss has a changeable character.
我的老板性格多变。
Her moods are very changeable.
她的情绪变化无常。
The current political situation is changeable.
风云变色。