2 sentences

1. 删除所有照片无济于事。

   shān​chú suǒ​yǒu zhào​piàn wú​jì​yú​shì.

   Erasing all the photos does not help.

   Source: CCMatrix

2. 我们大多数人会尝试，尝试，并尝试减肥，往往无济于事。

   wǒ​men dà​duō​shù rén huì cháng​shì, cháng​shì, bìng cháng​shì jiǎn féi, wǎng​wǎng wú​jì​yú​shì.

   Most of us will try, and try, and try to lose weight, often to no avail.

   Source: CCMatrix