The surgeon cut a thin flap about a quarter of the way into the cornea.外科医生切开了四分之一厚度的角膜薄片。He was widely criticized during the recent flap about his controversial new book.他备受争议的新书最近引起骚动，他在此期间受到广泛批评。The parishioners were in a flap about the visit from the bishop.教区居民因为主教要来而忙乱起来。