英文: This ought to be completed.
中文: 应该把这个做完(或写完,补全)。英文: He certainly ought to be promoted.
中文: 他应该要提升。英文: Prices ought to come down soon.
中文: 价格可能会很快下跌。英文: You ought to wear a raincoat.
中文: 你应该穿件雨衣。英文: You ought to have come earlier.
中文: 你本该来得早一点儿。