I haven't heard form Sam for a long time.Have you seen him lately.

问题描述:

I haven't heard form Sam for a long time.Have you seen him lately.
这个句子怎么译?for a long

我有很长时间没有听到Sam的消息了.你最近看到他了吗?
for a long time可以理解为“有很长一段时间”