基本解释n.空白；空隙；腔隙同根派生 lacunas相关词英汉例句用作名词 (n.)Fill up a lacuna in one's knowledge填补知识上的空白。His long reticence temporarily distracted attention from a bigger lacuna.他始终保持沉默，分散了人们对一个更大缺漏的注意力。There was so much very deep lacuna in his crude big hands.粗糙的大手上一道道很深的裂口。lacunas更多例句