Or, attach a bright bow with long ribbons to your waist so that strips of color cascade down the back of your dress.
或是用长长的丝带在你的腰部打个蝴蝶结，像条彩带似的从礼服后面垂下来。
2
MacKay first observed this effect on the wallboard of a BBC studio: the broadcasting staff had been annoyed by illusory shadows running up and down blank strips between columns of parallel lines.