Polybutylene
[机] 聚丁烯
🗣️ 情景例句
Next weekend ...
下周末……
I did composition last month.
我上个月做作文。
There they look at the moon, and eat the cakes.Mmmm! How delicious they are!
他们赏月，吃月饼。唔！它们（月饼）多好吃呀！