Ions
n. 离子（ion复数）
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
It's nothing.
小事情。
One of Charlie Chaplin's most famous films was The Gold Rush, which was made in 1925.
查理·卓别林最著名的影片之一是《淘金热》，它是在1925年摄制的。