Polyset
聚酯树脂
🗣️ 情景例句
and from the University of Michigan in 1956.
一九五六年从Michigan大学毕业。
Are there any questions?
还有什么问题吗？
and found our then prevailing primitive state completely uninteresting to their own advanced knowledge.
并且发现我们地球当时普遍存在着的原始状态同他们先进的知识相比是索然无味的。