Positronium
n. 电子偶素, 正电子素, 阳电子素\\n[化] 正电子素
🗣️ 情景例句
I want to break up with you.
我想和你分手。
Close your book,please.
请把书合上。
They were also quite sure that a cigarette end did not start the fire.
他们还十分肯定火灾也不是由烟头引起的。