Sawback
n. [地]鋸齒山脊
??? 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大學(xué)的在校生蘇珊，請問您貴姓？
He is playing on the swings outside.
他正在外面蕩秋千。
This caused the construction of gigantic buildings where too large masses of human beings are crowded together.
這樣就導(dǎo)致了許多摩天大廈拔地而起，大廈內(nèi)眾多的人擠在一起。