1. A number of techniques developed since the 1950s, however, have placed the study of these subjects on a sounder and more objective footing. 但是,自二十世纪五十年代以来一些技术的发展为这些学科的研究提供了更健全、更客观的基础。
2. You'll sleep sounder for this. 你会因此睡个好觉的。
3. You'll sleep the sounder for it. 这么一来你可以睡得更酣些了。
4. They will help me to do sounder decisions. 他们都会帮我作出有道理的决定。
5. My analyses and judgments seem sounder than before. 我的分析和判断似乎比以前更为正确。