分别用all the time,

all the time 始终：
She looked at the dress all the time.
她一直盯着那条裙子看
at the same time,在同一时间
They finished the work at the same time.
他们在同一时间完成了工作
every time,每次
Every time he comes across the same person at the same place.
每次他都会在同一地点遇到同一个人
in time,及时
He caught the train in time.
他及时赶上了那个火车.
on time 准时
He trys to keep the record of being on time without late for school.
他试着保持上课准时,有迟到的记录