旅客在登机前必须在提包上拴上标签的英文

before going on aboard the plane the passengers attached a tag to their handbags

• 旅客:    hotel guest; trave ...
• 在:    exist; be living
• 前:    front
• 必须:    must; have to; be ...
• 提包:    handbag; shopping ...
• 上:    upper; up; upward
• 拴:    tie; fasten
• 标签:    label; sticker

例句与用法

1. Passengers must attach labels to their bags before boarding the plane
   旅客在登机前必须在提包上拴上标签。
2. Before going aboard the plane ， the passengers attached a tag to their handbags
   旅客在登机前必须在提包上拴上标签。