class IrTrans(models.Model):
    _inherit = "ir.translation"

    def write(self, vals):
        res = super(IrTrans, self).write(vals)
        for rec in self:
            product = self.env['product.template'].search([('id', '=', rec.res_id)])
            a = vals.get('value')
            product.description_sale = a
        return res

this is the function i used in odoo 15, can i achieve this on odoo 17

you can use .po files to update translations.

Here is an example:

# Translation of Odoo Server.
# This file contains the translation of the following modules:
#   * your module name
#
# Translator:
# Adil Akbar, 2024
#
msgid ""
msgstr ""
"Project-Id-Version: Odoo\n"
"POT-Creation-Date: 2024-05-23 12:00+0000\n"
"PO-Revision-Date: 2024-05-23 12:00+0000\n"
"Language: ar\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"


#. module: your_module_name
#: model_terms:ir.ui.view,arch_db:your_module_name.view
msgid "Sale Order:"
msgstr "طلب البيع:"