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
And right now, he needs a friend.
而且现在， 他需要一个朋友。
You must have dialed the wrong number.
你肯定拨错了号。
All the biscuits that were sent were carefully weighed.
凡送来的饼干都仔细地称量。