Hevein
[化] 橡胶蛋白
🗣️ 情景例句
This Friday.
这个星期五。
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
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。