Polyset
聚酯树脂
🗣️ 情景例句
Are you from New York?
是从纽约来的吗？
There are many training classed and night classes.
有许多培训班与夜校。
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。