plain high diving

例句：

1. 1. The plain clothes made her look more professional.
   朴素的衣服让她看起来更专业。
2. 2. The plain design of the dress is very popular among young people.
   这件裙子的简单设计很受年轻人欢迎。
3. 3. The plain tablecloth added a touch of elegance to the dinner.
   简单的桌布给晚餐增添了一丝优雅。