Polybutylene
[机] 聚丁烯
🗣️ 情景例句
Don't lose sleep over it.
别因为这事儿睡不着觉。
Congratulations on your vitory.
我恭喜你胜利了。
Sparks were emitted from small black boxes and red lamps flashed on and off angrily.
小黑盒子里迸出火花，红色灯泡发怒似地忽明忽暗。