[计] foreground-initiated background job

qián tái qǐ dòng de hòu tái zuò yè ㄑㄧㄢˊ ㄊㄞˊ ㄑㄧˇ ㄉㄨㄥˋ ㄉㄜ˙ ㄏㄡˋ ㄊㄞˊ ㄗㄨㄛˋ ㄧㄝˋ