If you encounter this problem, please accept EPSON (CHINA) co. LTD. 's sincere apology to you for the inconvenience brought to you.

对于此问题给您使用带来的不便，爱普生(中国)有限公司向您致以诚挚的歉意。

youdao

As soon as you add a second cache server to the system, you encounter this problem: how do you maintain the consistency among the multiple servers that should contain identical data?

只要在系统中添加第二个高速缓存服务器，就会遇到以下问题：如果多个服务器应该包含相同的数据，如何维护多个服务器之间的一致性呢？

youdao

Unfortunately, no matter how regions are divided, they are arbitrary, and there is no practical way to measure regional inequality that does not encounter this problem.

ECONOMIST: Letters