osculum是什么意思

n.(海绵等的)排水孔,吸附器官,吸盘

1. In some cultures, an osculum is a common form of greeting.
在某些文化中，口唇接触是一种常见的问候形式。
2. The osculum is a key feature of sponges, through which water is expelled.
口唇是海绵的一个关键特征，通过它水被排出。

1. 口唇接触；2. 口唇之吻