Phenolplast
酚醛塑料
🗣️ 情景例句
When the bough breaks,
树枝若折断
What time does the plane take off?
飞机何时起飞呢？
Now the other stuents open their eyes, and guess who has the eraser.
现在其余的学生张开眼，然后猜谁手里有橡皮擦。