plain jolter

例句：

1. 1. The plain design of the dress is very elegant.
   这件衣服简单大方的设计非常优雅。
2. 2. The plain truth is that he doesn't like her.
   事实就是他不喜欢她。
3. 3. She wore a plain white shirt to the party.
   她穿着一件纯白色的衬衫去参加派对。