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
首: Ⅰ名词1.(头) head 短语和例子昂首 hold one's head high; 搔首 scratch one's head2.(首领) leader; head; chief 短语和例子匪首 bandit chieftain; 祸首 chief culprit; 为首 with sb. as the leader3.(表示方位) aspect 短语和例子下首 rig
