例句如下：Politicians, and the voters who elect them, are more comfortable with certainty.
政客和選舉這些人的選民喜歡確定性。
Even today, no one knows with certainty how ancient Egyptians built the pyramids.
甚至在今天，也沒有人能夠明確知道古代埃及人是怎樣建成金字塔的。