险寨雄关: strategic stockade and impregnable pass; strategic pass
Example Sentences:
1.
About various guestrooms 77 , rooms are allocated with the advanced vingcare electronic card keys 居于此，碧海金沙，帆影点点，巍巍雄关，长城蜿蜒的美丽景观尽入眼帘。
2.
These two grand passes of ancient times , yangguan which is 70 km south of dunhuang , and yumen pass which is 90 km northwest of dunhuang , were important passageways to central asia , india and europe 古阳关在敦煌市南70公里处，古玉门关在敦煌市西北90公里处，两座雄关，一南一北，是古代通往中亚印度欧洲的重要关卡。
3.
The jiayuguan pass tower , strategically located between the qilian mountain and mazong mountain , guards the east - west passageway at the western end of the great wall and is the best preserved pass . surrounded by three inner and outer walls and several lines of defense , jiayuguan was a vital military stronghold of defense 嘉峪关城楼，向南至终年积雪的祁连山下讨赖河畔，明长城依山势起伏隐现，向北到黑山悬崖，长城蜿蜒绵亘，嘉峪关城楼位于祁连山与马鬃山这间狭长咽喉地带的最窄处，镇守东西通道，是万里长城西端险要关隘，也是长城沿线保存得最完整的一座雄关，嘉峪关城由三重城郭多道防线，形成重城并守之势，构成一个壁垒森严的军事防御工程。
