What's the sweetest sound to welcome you when you board a long-haul flight? Is it a flight attendant welcoming you by name? Is it a soothing soundtrack drifting out of the speakers? Perhaps it's a silence that suggests there may not be a gaggle of screaming toddlers within earshot? Or what about the sucking thud of the door being closed on time?
在你登上一趟即将长途飞行的航班之时，欢迎你的声音中哪一种最甜蜜？是空姐叫出你名字的声音吗？是喇叭里传来的那种安抚人心的声音吗？也许是一种沉默，表明在你听力可及范围内没有一群尖叫不已的小家伙？会不会是“轰”的一声舱门关闭的声音呢？
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