expedience什么意思解释？

expedience的音标：expedience的英式发音音标为：[ɪk'spɪdɪəns]expedience的美式发音音标为：[ɪk'spɪdɪrns]...

This system has universality, expedience to use, and expansibility in practice.该系统在使用中具有广泛性 、 高效性 、 使用方便性和可扩展性.Moral convictions must out - weigh expedience and buck passing.道德的信念必须重于权宜之计和逃避责任.The true danger is when lib...