log class

例句：

1. 1. The engineer kept alog of all the work done on theproject.
   工程师记录了项目上所有工作的日志。
2. 2. The students were required to keep alog of their daily activities.
   学生们被要求记录他们的日常活动。
3. 3. The log book containsdetailed information about the journey.
   这本日志记录了旅行的详细情况。