Subject + 渡 + Body of Water
渡 (dù) is a verb meaning "to cross" or "to ferry across," specifically referring to crossing a body of water such as a river, lake, or sea. It should not be confused with 度 (dù), which means "to spend" or "to pass" time.
我们坐船渡过了那条大河。
Wǒmen zuò chuán dù guò le nà tiáo dà hé.
We crossed that big river by boat.
古时候人们靠小船渡江。
Gǔ shíhou rénmen kào xiǎo chuán dù jiāng.
In ancient times, people crossed rivers by small boats.
他们花了两个小时才渡过这片湖。
Tāmen huā le liǎng ge xiǎoshí cái dù guò zhè piàn hú.
It took them two hours to cross this lake.