It said that the letters in the word "tip" stand for "To Insure Promptness".
据说单词“tip”中的字母代表“To Insure Promptness”。
Many people think that the word "tip" is an acronym for "to insure promptness."
许多人认为，“tip”是“to insure promptness”的简称。
Many people think that the word "tip" is an acronym for "to insure promptness."
许多人认为，“tip”是“to insure promptness”的简称。
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