如果指在光禿禿的山上,用on,如果強調(diào)在樹叢中 用in ,這要看語境的
You can ski on the hills.
你能在山上滑雪.
Mr Jones:"Walk on the hills." OK?
瓊斯先生：“在山上漫步”可以吧
The creek originates in a spring in the hills.
小河源自山泉.
The kidnappers' lair was an old farm in the hills.
綁架者的藏身處是山里的一座舊農(nóng)場.
He earned his living cutting firewood in the hills .
他靠在山上砍柴為生.