precaution / prɪˈkɔːʃn / n. 预防；谨慎

=＋

You should take an umbrella just as a precaution.

你该带把伞，有备无患。

precede / prɪˈsiːd / v. 领先；在……之前

=＋

I preceded him out of the room. 我在他之前走出了房间。

predict / prɪˈdɪkt / v. 预测

=＋

No one can predict the outcome of the game.

谁都无法预测比赛结果。

premature / ˈpremətʃə(r) / a. 过早的；不成熟的

=＋

He is a premature baby. 他是个早产儿。

preoccupy / priˈɒkjupaɪ / v. 抢先占据；使全神贯注

=＋

His seat has been preoccupied.

他的座位已被人家抢先占据了。