- 坠落: fall; drop
- 角: role; part; character
- 落角: fall(ing) angle; [军事] angle of fall◇落角间隙 [钟] drop
- 坠落: fall; drop 飞机向地面坠落。 the airplane fell towards the earth.; 坠落高度 height of fall; 坠落试验 drop shutter test
- 崩落角: angle of break
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