| Translation | |||
|---|---|---|---|
| part of the problem | Production | 问题, 疑难问题 | |
| paucity of research | Production | 研究, 追究, 探讨, 做研究, 探究 | |
| problem can be seen as | Production | 问题, 疑难问题 | |
| problem is that | Production | 问题, 疑难问题 | |
| problem of how to | Production | 问题, 疑难问题 | |
| problem remains | Production | 问题, 疑难问题 | |
| problems can be seen | Production | 问题, 疑难问题 | |
| problems remain | Production | 问题, 疑难问题 |




