1. Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules. 阿连德陨石中同样令人困惑的成分是那些耐高温的内部物质：往往比陨石球粒要大的不规则白色块状物。
2. It took years to understand many perplexing diseases. 许多疑难病症要耗时多年才能搞明白。
3. It was a rather perplexing discovery. 这确实是一个让人困惑的发现。
4. Some relatives will be extremely perplexing. 有些亲戚特别的令人困惑。
5. This is the kind of perplexing thought Descartes forces us to confront. 这正是笛卡尔迫使我们面对的那种令人费解的想法。
