certain

Certain students in the class always finish their homework early.

(Chinese) 班上的某些学生总是早早完成作业。

The museum is closed on certain public holidays, such as New Year's Day.

(Chinese) 博物馆在某些公共假日，比如元旦，是关闭的。

I am certain that I locked the door before leaving the house.

(Chinese) 我确信我离开家之前锁了门。

After checking the map three times, she felt certain about the route to the campsite.

(Chinese) 检查了三遍地图后，她对去营地的路线很有把握。

It is certain that the sun will rise tomorrow morning.

(Chinese) 太阳明天早晨一定会升起。

With their lead in the polls, the party's victory in the election seems certain.

(Chinese) 凭借在民调中的领先优势，该党在选举中获胜似乎已成定局。