1. cast a compass : 兜圈子, 绕道, 转弯抹角, 扯得很远；
及物动词
名词
1. 指南针;罗盘
A compass is an instrument that you use for finding directions. It has a dial and a magnetic needle that always points to the north.
2. 圆规
Compasses are a hinged V-shaped instrument that you use for drawing circles.
3. 界限;范围
If something is within the compass of something or someone, it is within their limits or abilities.