disappear forever 石沉大海

“石沉大海”，汉语成语，字面意思是像石头掉到大海里一样（like a stone dropped into the sea），不见踪影，比喻始终没有消息。可以翻译为“never to be seen or heard of again，disappear forever”。

例句：

建议提出后却如石沉大海。

After the proposal was put forward it simply remained a dead letter.

求职信将决定你是能得到面试机会还是简历会石沉大海。

Your cover letter may make the difference between obtaining a job interview and having your resume ignored.