https://online2.tingclass.net/lesson/shi0529/0009/9907/773.mp3
https://image.tingclass.net/statics/js/2012
讲解文本：
go (off) without a hitch 进展顺利
Don't worry. I'm sure the party will go off without a hitch.
别担心， 我相信聚会会进展顺利的。
The meeting went off without a hitch.
会议一切顺利。
