| 释义 |
roll bar in American English US a strong steel bar that passes over and across the width of the interior compartment in some automotive vehicles so as to reduce injury to the driver and passengers if the vehicle rolls over used esp. in racing roll bar in American Englishnouna heavy steel transverse bar in the form of an inverted U rising from the framework of an automobile to prevent its occupants from being crushed if the vehicle rolls over Also: rollbar Word origin [1950–55 ]This word is first recorded in the period 1950–55. Other words that entered Englishat around the same time include: Common Market, conflict of interest, hot line, point-of-sale, wiretapExamples of 'roll bar' in a sentenceroll bar |