The flagstones beneath their feet were worn smooth by centuries of use.他们脚下的石板路经过数百年的踩踏，磨得光溜溜的。The cyclist had smooth legs.这位骑车人的腿光溜溜的。His receding hair was slicked back from his forehead.他已经开始谢顶的头发从额头向后梳成了光溜溜的背头。She had slicked her hair back.她把头发往后梳得光溜溜的。