山口：山脉中的低点，使旅行者可以穿过山脉。
关
陉
mountain pass 鞍部 ; 山口 ; 帕斯山 ; 关山行 Castle Mountain 卡斯尔山 ; 卡斯尔山 ; 城堡山 .
sai将当即开始从molycorp旗下位于加利福尼亚州帕斯山(mountain pass)的稀土开采挖掘及加工工场获取用于出产其产物的稀土原料,这将使其成为北美首家不听从赖神州稀土原料的稀土金属及合金出产商。
... 山脉中断的地方 [defile;mountain pass] 灶边承放器物处的形状、样子 [edge of a kitchen stove] 斜坡 [slope] ...
We stopped on the mountain pass to admire the scenery.
我们在山口停下来欣赏风景。
The monastery is in a remote mountain pass.
那僧院在一个偏远的山坳通道处。
So, it looks like a mountain pass, right?
它看起来就像是山口，对吧？
They could cross the mountain in one of two places -- the White Pass and the Chilkoot Pass.
VOA : special.2009.02.11
Over half of this expanded global demand was met by a single mine, Mountain Pass, in the deserts of southeast California.
During the winter months, the Albula mountain pass closes to car traffic and the road gets taken over by schussing wooden toboggans.
Soon after the Moscow meeting, a large convoy of Yugoslav troops and armour moved to secure a mountain pass south of Pristina, Kosovo's capital.