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abbr. 和的平方根（root-sum square）；[拉]英国皇家学会会员（Regiae Societatis Socius, 等于fellow of the royal society）
🗣️ 情景例句
about the first Thanksgiving.
第一次感恩节历史剧。
Speak well of your friend, of your enemy say nothing.
要赞美朋友，莫提及敌人。
No, thank you. Tom.I've already had lunch.
不，汤姆，谢谢。我已经吃过饭了。