holdover voltage过保持电压
Holdover mode保持模式
dc holdover直流蓄冷
holdover audience既有观众;把握住的观众
holdover director董事的延期
holdover time保持时间;延续时间
holdover performance保持性能
holdover canker残留木溃疡
holdover grid蓄冷排管
N-COUNT（可数名词） A holdover from an earlier time is a person or thing which existed or occurred at that time and which still exists or occurs today. 留任者; 留存物 [美国英语][oft N 'from' n]
Most of the U.S. attorneys are holdovers from Republican days.
这些美国律师大部分都是共和党执政时期的留任者。