走着走着、忽然一个同学想起垃圾还没有收拾的翻译：Walk walk, suddenly a classmate remembered garbage has not been clean up 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I walked, I suddenly remembered a classmate not pick up garbage

Walk walk, suddenly a classmate remembered garbage has not been clean up

Walks is walking, a schoolmate is remembering trash not to tidy up suddenly

We walked and walked, and suddenly one classmate reminds me also did not pick up trash

Walk walk, suddenly a classmate remembered garbage has not been clean up