Fiuted roller
[化] 槽纹辊
🧩 词语组成解析
🗣️ 情景例句
You do. You do. There's a book here.
当然 ，当然。书要出版。
That deep sigh could only express Helen's sadness.
那深深的叹息，不外乎表示出海伦的悲哀。
What are you doing?
你在干什么？