1. The plane 's taking off. Please fasten your seat belt.
   飞机起飞了。请系好安全带。
2. Please fasten these tags on your hand-carry luggage.
   请把这些标签系在您的手提行李上。
3. Make sure that your seat belt is securely fastened.
   请确认你的安全带系牢了。
4. The handbag won't fasten properly.
   这手提包的口关不紧。
5. She fastened the notice to the board.
   她把通知固定在布告栏里。

　2个名词解释