be sure 是什么意思

be sure 是什么意思

be sure[英][bi: ʃuə][美][bi ʃʊr][法]确信; 诚然; 有谱儿; 肯定; 确定; 双语例句1When I finally snapped the lid of a box shut, I sealed it with transparent tape and checked to be sure that it would not loosen.当我在最后啪嗒一声关上箱子盖子的时候，我就用透明胶带把它封好，并进行检查，确信它不会松动。