“我娘曾经告诉我一句话是小燕子不知道的：你还记得当年大明湖畔的夏雨荷吗？”怎么翻译？

My mother had told me a word Xiaoyanzi did not konw .Do you still remember the Daming Lake ,Xia yuhe?

楼上的同志，那个，不应该用what 吧？

My mother once told me a word Xiaoyanzi do not know is: Do you also remember the Daming Lake, Xia Yuhe?

My mother told me a sentence what Xiaoyanzi didn't know.that is"Do you remember Xia Yuhe in
the Daming Lake".