Barion
重子, 激子(激发核子)
🗣️ 情景例句
I always cry at weddings.
我在婚礼上老是哭。
I got there by plane.
我坐飞机去的。
Neither of us realized that night that these carvings and paintings dated back 15,000 years,
我们没有意识到这些刻画追溯到15，000年前，