"Oh yes, everyone's celebrating, all right," she said impatiently. "You'd think they'd be a bit more careful, but no .我问这句话里边两个缩写的'd这什么意思？是表示推测，后面一个是表示建议吗？（注:这句话表示的意思结合语境应该是，说话人，认为they应该当心一些，他们目前表现的，太不当心了）