above/below the fold idiom
（报纸的）上／下半折（被认为是用来刊登文章或广告的较好／较差位置）
the top/bottom half of a newspaper, that can/cannot be seen when it is folded in half and is considered a good/bad place to have an article or advertisement
（网页）不需要／需要翻页可看到的部分
the part of a web page that can/cannot be seen before you scroll down the page