dance attendance on
奉承,小心侍候always do what sb else wants sb to do without asking questions
He danced attendance on Bob.他奉承鲍勃。
The young man danced attendance on his rich aunt.这个年轻人小心侍候他有钱的姑妈。

in attendance
1.当值,出席on duty; being present
There is a nurse in attendance.有一位护士值班。
The chief engineer is very busy and can't be in attendance at today's meeting.总工程师太忙了,不能出席今天的会议。
2.侍候,照料present in order to look after
Now that the patient is out of danger, the doctor is no longer in attendance.既然病人已经脱离危险期,医生就不用再照料他了。

The attendance of meetings takes up a great deal of my time.参加各种会议占去我很多时间。
He missed three attendances this year.他今年缺席三次。
The attendance of this class never dropped off.这个班的出席人数从未下降。