Studies have shown that people tend to under estimate their weight and overestimate their height .
研究表明，人们往往会低估自己的体重，高估自己的身高。
2
Public institutions pitted themselves against private collectors and trade, driving prices overestimate in many instances.
公共艺术机构与私人藏家与艺术交易商都积极出价，从而不断抬高价格并远超于估价。
3
The phenomenon was due to what's known as the vertical-horizontal illusion, in which observers tend to focus on heights rather than widths and over-estimate the vertical.