Periodic job
[計] 周期作業
?? 詞語組成解析
periodic
[,p?r?'ɑd?k]
adj. 周期的;定期的;回歸的;間歇的，時而發生的;
job
[d??b]
n. （一件）工作;職責;職業;（作為一個單元處理的）作業;
vt. 承包;代客買賣;
vi. 做零工;作包工;打雜;
??? 情景例句
Here you are. You can keep the change.
給你。零錢不用找了。
Who are you writing to?
你正在寫信給誰？
The children were at school, my husband was at work and the house was quiet.
孩子們在上學，我丈夫在上班，家里清靜得很。