woocommerce shipping method title & messages

Is it possible to translate shipping method title?how can I do it ?

Also, some messages are not translated and I do not understand why, for example
when I add a product to cart ‘xxx was successfully added to your cart.’ or when I update the cart ‘Cart updated.’ ; these messages are not translated in the correct language.

I do not know if it’s a problem of the plugin , of woocommerce or of the theme.

I hope you can help me.

https://squalestore.com/newshop

https://www.ads-software.com/plugins/polylang/