1.A total of 4,563 adults participated in the survey, which was based on participants' weekly physical activity.
a total of总数为
The companies have a total of 1,776 employees.
这些公司总计有1,776名员工 。
2.or are eating too much to compensate for the amount of activity undertaken
compensate for赔偿,补偿
Nothing can compensate for the loss of a loved one.
失去心爱的人是无法补偿的 。