ad hoc

1. ADJ An ad hoc activity or organization is not planned in advance, but is done or formed only because a particular situation has made it necessary. 特別的

"I would accept opportunities in TV on an ad hoc basis," he said. “在特別需要時(shí)我會(huì)接受在電視上露面的機(jī)會(huì)，”他說(shuō)道。