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（网络聊天数字用语）晚安。
🗣️ 情景例句
You're the best.
你是最棒的。
Friendship cannot stand always on one side.
来而不往非礼也。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。