A—Welcome aboard Delta Airlines. B—On behalf of Delta Airlines Captain Johnson and his crew welcome you aboard. C—Our flight to Japan will take approximately four hours. D—Let us remind you to fasten your seat belts, straighten your seats, and kindly refrain from smoking during take-off. E—Under your seat there is a life vest like this one for each of you. F—An oxygen mask will come down from overhead in case of an emergency. G—Please press the call button whenever you need any help. H—We’ ll take off soon. Please fasten your seat belt. ( )若发生紧急情况，头颈上会放下一只氧气罩来。