Positronium
n. 电子偶素, 正电子素, 阳电子素\\n[化] 正电子素
🗣️ 情景例句
How does she get by on such a small salary?
她靠那么一点薪水怎么过生活？
It's quite an intersive few days.
那几天可真紧张。
It did not take the firefighters long to put out the fire, and they at once started to look for causes of the fire.
消防队员没花多时间就把大火扑灭了，他们马上开始调查火灾发生的原因。