单词 跑下去 例句 DEFINITIVE EXAMPLES 权威例句〔LOUD〕We heard a commotion downstairs and ran down to see what was happening. 我们听到楼下一阵喧闹,于是跑下去看个究竟。朗文写作活用〔bank〕The girls ran down the steep grassy bank.女孩子们沿长满青草的陡坡跑...