rollover
/ˈrəʊlˌəʊvə(r)/noun
1
- Finance the extension or transfer of a debt or other financial arrangement【财政】（债务或其他财务安排的）延期, 展期; 转移。
1.1
- (in a lottery) the accumulative carry-over of prize money to the following draw（以到期债券所得进行的）再投资。
2
- informal the overturning of a vehicle〈非正式〉翻车。
3
- a facility on an electronic keyboard enabling one or several keystrokes to be registered correctly while another key is depressed单指和弦。