堆场作业

guard duty───警卫岗；警卫任务

jury duty───在陪审团作陪审员时间；陪审员的义务

pay duty───[税收]纳税

death duty───遗产税

evade duty───漏税

hard drugs───（会在生理和心理上）致瘾的麻醉品

moral duty───道德义务；业

Michael asks when he can get the peroxide. C-Note says he probably won't have it until after yard duty.───Michael问他何时能搞到漂白剂，c - Note说大概得等到在院子放风以后。

Once, when mother on duty in the office, I went to her work place to find her, see the ground in the yard, there are many worms.───有一次，妈妈在办公室值班的时候，我去她工作的地方找她，看见院子里的地面上有许多的蚯蚓。

We are on duty today, let's clean the classroom and the school yard.───今天我们值日，我们来打扫教室和校园（包干区）吧。

Michael asks when he can get the peroxide. C-Note says he probably won't have it until after yard duty.───Michael问他何时能搞到漂白剂，C-Note说大概得等到在院子放风以后。