每日一詞 505 rule of thumb 一般規(guī)律

今天我們要學(xué)的詞是rule of thumb。 Rule of thumb, 經(jīng)過(guò)反復(fù)實(shí)踐，得出的一般規(guī)律。一項(xiàng)最新研究指出，少吃能長(zhǎng)壽。 "The rule of thumb is that by eating 15 % less starting at age 25 you could add 4.5 years to your life," 一般規(guī)律是，如果你從25歲開(kāi)始，飯量減少15%，就能多活四年半。

如今油價(jià)飛漲，省油的高招之一是： "As a rule of thumb, shut off your engine if you expect to be sitting for more than 30 seconds," 一般來(lái)說(shuō)，如果停車超過(guò)半分鐘，就應(yīng)該熄滅引擎。好，今天我們學(xué)習(xí)的詞是rule of thumb...