洞: Ⅰ名词(物体上穿通的或凹入较深的部分; 窟窿; 洞穴) hole; cavity 短语和例子山洞 mountain cave; 在地上挖一个深洞 dig a deep hole in the ground; 点着的香烟在他衣服上烧了一个洞。 a lighted cigarette burned a hole in his clothes.Ⅱ形容词(深远; 透彻) profo
岭: 名1.(顶上有路可通行的山) mountain; ridge 短语和例子分水岭 watershed; ridge; 翻山越岭 cross over mountain after mountain; 崇山峻岭 high mountain ridges2.(高大的山脉) mountain range 短语和例子大兴安岭 the great xing'an mountain3.(