Hello, I am using Magento 2.2.x and need to translate the email template for order received in few languages. How can make this happen?
You can create a new template using the option on Marketing -> Communications -> Email Template.
There you'll find a grid (as any other grid)
And then you can create your own template based on the original email temapltes.
Then you will need to change the configuration (and the scope) to assign the translated email to each store view.
More documentation about how to configure your email templates can be found here: https://docs.magento.com/m2/ce/user_guide/marketing/email-templates.html
If you just want to do translation find the sentence and put it in translation csv for your language.
If you want to change complete sentence you need to add relevant template from admin and assign it from store configuration.