“很长时间没联系了”用标准的英语怎么说

可以这样说：No contact for a long time;Long time no contact;I haven't been in touch for a long time.

重点词汇

很长时间 for a long time ; for long ; for ages

联系 contact ; touch ; connection ; relation

短语：

long time no see 好久不见 ; 很久不见 ; 久别的人

for a long time 很长时间 ; 长时间 ; 长期以来 ; 很长一段时间

A long time 良久 ; 很长一段时间 ; 很长时间 ; 长时间

Long time gone 岁月流逝 ; 长久的离开 ; 南方小鸡 ; 岁月消逝

要看语境
如果写信，可以说 I haven't written to you for a long time.
打电话时说 I haven't talked to you for a long time.
也可说 I haven't heard about you for a long time.
也可说 I haven't contacted you for a long time.
最后一句较正式。

“很长时间没联系了”

英文翻译
"It's been a long time."

要看语境

如果写信，可以说 I haven't written to you for a long time.

打电话时说 I haven't talked to you for a long time.

也可说 I haven't contacted you for a long time.

也可说 I haven't heard about you for a long time.

“很长时间没联系了”用标准的英语怎么说
------ We haven't contacted each other for a long time.