v.扣牢;关紧;使牢固;系上;抓牢;盯住;
例句:
Fasten your seat belts and get ready for some fun!
扣紧你的安全带准备一次快乐吧.
Could you help us fasten safety belts?
你可以帮我系好安全带 么 ?
Fasten your seatbelts, please.
请系好安全带。