HELLOused to say hello when you are greeting someone in the evening, especially someone you do not know 晚上好〔尤用于和不认识的人打招呼〕 → good afternoon, good morning, good night
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In informal everyday English, people often just say Evening. If you don't want to sound formal or informal, you can just say Hello: 在非正式日常英语中，人们常常只说Evening。如果想避免听起来正式或非正式，说Hello就行了
Evening, Tom.
晚上好，汤姆。
Examples from the Corpus
good evening• Have a good evening. 1904 How can you, you have class tomorrow night?• Dearest Timothy: It is a good evening to sit in this pleasant room and write a letter.• Ah, good evening, Lestrade!• We exchange slightly embarrassed good evenings with them as we leave.• A bad morning, a good afternoon and - perhaps - an even better evening.• Behind the glass I see her tell everyone good evening.• A policeman walked by, wished me good evening and ushered a warning.• But for now from all the team, have a very good evening.
good eveningn
nused to greet someone when you meet them in the evening