释义
n. 跳跃,界限,范围 a. 受约束的,装订的,有义务的 v. 跳跃
例句
1. It's bound to rain soon. 过一会儿肯定会下雨。 2. You are not legally bound to answer these questions. 在法律上,你没有义务非回答这些问题不可。