下山的用法和樣例：
例句
-
太陽(yáng)下山后天氣很快就會(huì )冷下來(lái)。
It gets cold quickly when the sun goes down. -
太陽(yáng)下山了。
The sun descended behind the hills. -
樵夫背著(zhù)柴火下山了。
The woodsman carried the firewood down the hill. -
石頭滾下山時(shí)，它的動(dòng)量增加。
As the rock rolled down the mountainside, it gathered momentum. -
下山差不多花了兩個(gè)小時(shí)。
The descent down the mountain took nearly two hours.
