Polyphenyloprene
聚苯基丁二烯
🗣️ 情景例句
Let's get the ball rolling.
让我们开始吧。
All our work was in vain.
我们白干了一场。
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子