The Real Reason Your Airplane Seat Needs to Be Upright During Takeoff and Landing. 為何飛機起飛跟降落時要「豎直椅背」? 本週精選文來自:Reader’s Digest ★Vocabulary
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The Real Reason Your Airplane Seat Needs to Be Upright During Takeoff and Landing. 為何飛機起飛跟降落時要「豎直椅背」? 本週精選文來自:Reader’s Digest ★Vocabulary
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