1. In theory as well as in practice, the idea is unsound. 这个主意在理论上和实践上都站不住脚。
2. According to this theory the previous difficulties were the result of using an essentially unsound system of mechanics. 根据这一理论，先前的困难是由于采用了根本站不住脚的力学体系造成的。
3. In other words, censorship as hegemonic suture is any act intended to keep students from reading, seeing or hearing any materials that some person deems objectionable or morally unsound. 因此，我们可以说审查制度扮演著霸权缝合的角色，主要是避免学生读到、看到或听到任何文化与道德政治上不正确的东西。
英英解释
adj.
1. not in good condition; damaged or decayed
2. not sound financially
3. containing or based on a fallacy
4. suffering from severe mental illness
5. physically unsound or diseased
6. of e.g. advice
