long arm的用法和樣例：
例句
- The long boom of the crane functions like our arms.
起重機的長臂與我們的手臂功能相同。 - In the main arm were the cells of the mothers, the sisters, and the novices.
沿著長臂一帶，是各級嬤嬤和初學生的靜室所在地段。
辭彙搭配
- the long arm of coincidence 意外的巧合
- have a long arm 影響廣泛
