Outside the [color=#ff3853]cave[/color] mouth the blackness of night was like a curtain. A: n. 高兴；欣喜；乐事 B: n. 洞穴；山洞 C: n. 硅 未知类型：{'label': 'source', 'content': '柯林斯词典', 'isMemberControl': 0, 'type': 181}