Sawback
n. [地]锯齿山脊
🗣️ 情景例句
He visited with Grandma and me in Florida
他到Florida看过祖母和我
That's your book.
那是你的书。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，