短语词组用作副詞 (adv.)~+動詞often come 經常來often go 經常去often hear 經常聽見often meet 經常遇見often rain 經常下雨often write to sb 經常給某人寫信~+副詞often damp 通常很潮溼often difficult 通常很難often tall 通常很高短語 返回 oftener