sneak preview
柯林斯词典
1. N-COUNT A sneak preview of something is an unofficial opportunity to have a look at it before it is officially published or shown to the public. (非正式)預覽; 預映[oft N 'of' n]
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sneak preview (sneak previews)
剑桥词典
- an opportunity to see (a part of) something new before the rest of the public see it
（公開放映前的）試映，預映 返回 sneak preview