守约
to go to a meeting or event that has been arranged
She phoned to say she couldn't keep her appointment. 她打电话说她无法守约了。
People in the area are being encouraged to keep their appointments to donate blood today.
There are still too many patients who fail to keep their appointments.
She set off to San Francisco to keep an appointment with the writer.
They drove through the snow for hours in order to keep their appointment.
See also: keep verb (CONTINUE TO HAVE)