Nonscheduled
a. 不定期的, 不按計劃的
??? 情景例句
His father has to sell the farm to pay back the bank.
他的父親不得不把家聲賣掉以還債給銀行。
Reading and listening to music is the ultimate in relaxation.
一面讀書，一面聽音樂是最佳的休息。
Needless to say our house is now surrounded by a jungle.
不用說，我家現(xiàn)在已被叢林包圍。