短语词组短语to be being done 进行形式的被动形式be the done thing 符合传统;符合传统的或可以容许的行为be being done 现在进行时be hard done by 受到不公平待遇;受到不公平的待遇system be well done 系统正常工作to be the done thing 理所当然的事to doto be donee done 进行式S -can be easily done 那容易做 返回 be done