as reported on:
https://wordpress.org/support/topic/ive-read-and-accept-the-terms-conditions-only-in-default-language/

if this text is set in the customiser options for WooCommerce, Checkout, then it is not translated.
This change adds to the Polylang Strings Translation table to allow translation there.