back against的用法和樣例：
例句
用作形容詞 (adj.)
- He was sitting with his back toward the stern, looking glum and holding his left hand in his right.
他背朝船尾坐著，右手托著左手，悶悶不樂。 - The child was standing with his back to the sun, which cast threads of gold in his hair and empurpled with its blood-red gleam the savage face of Jean Valjean.
那孩子背朝太陽，日光把他的頭發照成縷縷金絲，用血紅的光把冉阿讓的兇悍的臉照成紫色。
