The following is the AI's preliminary analysis of this message, which we hope will provide you with some ideas before it is fact-checked by a human.
這則訊息中提到「三四天發貨」,閱聽人需要特別留意的地方是時間表達的模糊性。「三四天」並不是一個確切的時間範圍,可能會讓人產生誤解或不確定性。閱聽人在接收此訊息時,應該詢問更詳細的時間表達,以確保溝通的清晰度和準確性。