I am sorry not to have been in touch with you since we last met but I have been insanely busy.
不好意思，自上次见面后我一直没和你联系，但我真是忙疯了。
Even if you have an insanely great mousetrap, the world will not beat a path to your door. Everyone's busy doing their own thing.
就算你的超炫产品棒得不得了，全世界的消费者也不会争先恐后去抢购，因为每个人都忙着做自己的事情。
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