成语：石沉大海
发音：shí chén dà hǎi
解释：石头沉到海底。比喻从此没有消息。
翻译：lit.: Like a stone sinking into the ocean.

While practising calligraphy I came over this funny Chengyu, which literally means “a stone sinking into the ocean”. It is very easy to imagine, and after looking it up in the dictionary, I learned that it is an idiom for not getting news. For example if you don’t hear anything from your friends it can be compared to “a stone sinking in the ocean”. Or if you sent an application somewhere, but don’t get any reply, it’s also like “a stone sinking in the ocean”. All right, I hope you could understand the meaning.
This is the example from the dictionary:

• 我写了几封信去催，都石沉大海，至今不见回音。
  I wrote several letters urge, but they were all like stones sinking in the ocean, and I didn’t get an answer until now.

• 差以毫厘，失之千里 (0)