trans-n

The t:trans-n attribute is an alias of the transchoice Symfony tag and allows you to translate the content of a node with plurals.

Let’s see how does it work:

<div t:trans-n="applesCount">
    {0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples
</div>

Of course, you can also use variables in your text.

<div t:trans-n="applesCount, {'%name%':'John'}">
    {0} %name% don't like apples|{1} %name% is eating one apple|]1,Inf] %name% is eating %count% apples
</div>

You can also specify different domains for your translations.

<div t:trans-n="applesCount, {'%name%':'John'}, 'app'">
    {0} %name% don't like apples|{1} %name% is eating one apple|]1,Inf] %name% is eating %count% apples
</div>

Tip

See here http://symfony.com/it/doc/current/book/translation.html to learn more about the Symfony translation system.