Polyacetals
聚缩醛(树脂)
🗣️ 情景例句
I'd like to thank Harvey Carlson
我非常感谢Harvey Carlson
I will take a taxi.
我将去搭出租汽车。
When he began to play a tune, we had our first glimpse of the snake.
当他开始吹奏一支曲子时，我们才第一次看到那条蛇。