现在正是乘飞机出行的高峰期。

Xiànzài zhèng shì chéng fēijī chūxíng de gāofēngqī.

Right now is the peak season for traveling by plane.

三乘五等于十五，这个你肯定会算吧？

Sān chéng wǔ děngyú shíwǔ, zhè ge nǐ kěndìng huì suàn ba?

Three times five equals fifteen; you can definitely calculate that, right?

我们早上八点乘地铁去上班。

Wǒmen zǎoshang bā diǎn chéng dìtiě qù shàngbān.

We take the subway to work at eight in the morning.