A week later, I strolled down to the ground floor( ground zero for me) and unearthed my test from the heaps of exams.是什么意思_A week later, I strolled down to the ground floor( ground zero for me) and unearthed my test from the heaps of exams.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句