1. The use of machinery has superseded manual labour.
   机器的使用已经取代了手工劳动。
2. Manual labour has become unpopular with young people.
   体力劳动年轻人已经不喜欢做了.
3. He has loved manual labour since he was a child.
   他从小热爱体力劳动。
4. Some kinds of manual labour have been replaced by machines.
   有一些体力劳动已为机器所取代。
5. Work done by machines has replaced manual labour.
   机器生产已经代替了手工劳作.

　1个名词解释