covet GRE专八

I covet one of their bubblejet printers.

我很想要他的一台喷墨打印机。

The boys coveted John's new hat.

孩都想戴一戴约翰的新。

It's a sin to covet.

得无厌是一种罪恶。

By proving properties of demicontinuous function and series with function terms, use methods of finite coveting theorem and its application in proving problems are introduced.

通过半连续函数及函数项级数等有关性质的证明,介绍了有限覆盖定理的使用方法,说明了它在证明问题中的作用。