1.不可数名词,(日期时间,地点等)约定,商定
I will meet a Mr.Li by appointment.我会约见李先生.
可数名词,(指定地点、时间的聚会、访问等)
I will keep my appointment with you.我会遵守和你的约定.
2.不可数名词,指派,任命,任用,与of 或to连用
I must finish the appointment of the teacher on time.我必须按时完成老师指派的任务.
可数名词,(经由任命的)职务,职位
### will take up the appointment of Mayor.##会就任市长一职.
3.常用复数,(无法轻易卸下的)设备
You should look after the interior appointments of the car.你应该照看好汽车的内部设备.