mid-13c., "unstable, inconstant, unreliable," from Old French changeable "inconstant," from changier (see change (v.)) + -able (see -able). Meaning "subject to variation" is from late 14c. Related: Changeably.
权威例句
1. The forecast is for changeable weather.
预报针对的是变化无常的天气。
2. The weather is very changeable at this time of year.
年年在这个时候天气都变化无常。
3. The heavy rain might settle the changeable weather.
这场大雨也许能使变幻不定的天气稳定下来.
4. The weather in Britain is notoriously changeable.