成年人英语口语 Hello！ （How do you do？）你好！How are you？-Im fine. Thank you. and you？你好吗？我很大。谢谢，你呢？Good morning/afternoon/evening/night.早上好／下午好／晚上好／晚安。成年人英语口语主要包括日常交流、职场沟通、学术讨论、社交活...