back angle的用法和樣例：
例句
- Get a finder about the same angle of view of the taking lens, or a little longer.
在選擇輔助取景器時可以考慮與所用拍攝鏡頭相同視角或者較其略微廣角的取景器。 - From the angle of gender, the study is begun with an investigation of poo.
首先從社會性別的視角入手，以南京市城市領取低保金的貧困家庭作為調查對象進行研究。 - He knew his son's classroom was on the left back corner of the ground floor, so he went there quickly and began to dig.
他知道兒子的教室在一層樓的左後角處，便疾步走到那裡，開始動手。
