n.延長；延長部分
There was an indefinite prolongation of the peace talks. 和談被不確定的延長了。
But the shelf is also a geographical term, used to describe the physical prolongation of land below the sea. 但是，大陸架同時又是一個地理詞匯，用來描述海下包括延伸到200海里之外的地理面積。
