Polyresin
合成树脂
🗣️ 情景例句
The world could be heading for an economic recession.
世界也许正在走向经济衰退。
In an enemy spots are soon seen.
敌人的缺点容易找。
Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
地球周围温暖的大气层和望远镜散出的热量使得我们根本不可能找到比行星更小的物体。