Some persons understood this as an imputation on mrs. ducker . 有人解释说，这个是有伤达克夫人的人格的。
2.
Ducks clucked under the docks with a ducker in duck ducking into dark 鸭子在码头下面咯咯直叫，一个穿帆布的猎鸭人一闪隐入黑暗中。
3.
Ducks clucked under the docks with a ducker in duck ducking into the dark 鸭子在码头下面咯咯叫，一个穿着帆布衣服的养鸭人一弯腰隐入黑暗中。
4.
Human resource management ( hrm ) has been playing an important role in business management since professor peter ? ducker advanced the idea of " human resource " half a century ago 在彼得?德鲁克教授提出“人力资源”概念将近半个世纪以来，人力资源管理已经成为企业管理的重要内容。
