an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude
(尤指用来预报天气和测量海拔的)气压计;晴雨表。
something which reflects changes in circumstances or opinions
(环境或观点)变化的标志
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furniture is a barometer of changing tastes .家具是品味变化的标志。
"mid 17th cent.: from Greek