vest意思是背心，以下是双语例句：
1、He wore a woollen vest beneath his shirt. 他衬衫里面穿着一件羊毛背心。
2、However, whenever that happens, I will try to remember my father's vest. 然而，每当这种情况发生时，我都会努力记起我父亲的背心。
3、They have a vested interest in keeping the club as exclusive as possible. 他们希望俱乐部尽可能地限制会员加入以从中受益。
4、Vested interests are opposing the plan. 既得利益集团在反对这项计划。
5、There's an extraordinary amount of power vested in us. 我们被授予了巨大的权力。
6、Only those with vested interests in the current system could ignore the need for change 只有那些在当前的体制中有既得利益的人才会忽略改革的必要性。
7、The administration has no vested interest in proving whether public schools were good or bad. 在证明公立学校好坏方面，行政部门不存在既得利益。
8、The mass media have been vested with significant power as social and political agents in modern developed societies 在现代发达社会中，作为社会和政治媒介，大众传媒被赋予了很大的权力