certain造句

There is a certain impatience among some of the soldiers.
有些士兵有点儿不耐烦。

Over the years he's demonstrated a certain prescience in foreign affairs.
这些年来,他已经在外交事务方面表现出一定的预见性。

I feel certain that it will all turn out well.
我觉得最后肯定会皆大欢喜。