1.An excellent ª©t ªª can finish typing the long article in such a short time.
¡¾´ð°¸¡¿ typist
2.The government offered ten thousand RMB as the ª©r ªª for his contribution in the field.
¡¾´ð°¸¡¿ reward
3.On the ª©b ªª of these theories,Mr.Green worked out his picture of the state of the future.
¡¾´ð°¸¡¿ basis
4.I have to go now.I’ve got an ª©a ªª with Joe outside the cinema at 7:00.
¡¾´ð°¸¡¿ appointment