In informal everyday English, people often just say Morning. If you don't want to sound formal or informal, you can just say Hello: 在非正式日常英语中,人们常常中说Morning。如果想避免听起来正式或非正式,说Hello即可
Morning, Joe.
早上好,乔。
Examples from the Corpus
good morning• I smiled at her and wished her a good morning.• I smiled cheerfully, wished everyone a good morning and began to stuff the food into my mouth.