Ri
[化] 放射性同位素
✅ 同义词
📖 牛津释义
RI
abbr 缩写 = (Brit) (on coins) Queen and Empress; King and Emperor (Latin Regina et Imperatrix; Rex et Imperator) （钱币上的）女王和女皇, 国王和皇帝（源自拉丁文Regina et Imperatrix; Rex et Imperator）.
🗣️ 情景例句
Yes, you are through with it. I hope you will enjoy your stay in China.
是的，检查完毕。希望您在中国过得愉快。
He's a smart man.
他是一个精明的人。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”