pleasantadj.令人愉快的;讨人欢喜的;舒适的;宜人的
pleasant outlook悦目的景色
pleasant surprise既高兴又意外
pleasant stimulus愉快性刺激
pleasant ambience友好的气氛
pleasant incident令人愉快的事件
pleasant festival欢快的节日
pleasant contrast令人愉快的对照
pleasant interval令人愉快的间歇
"they exchange pleasantries"