catlai on "[Plugin: Polylang] How to translate "Read more" at excerpt field"

The coding is:

function excerpt_read_more_link($output) {
global $post;
return $output . 'ID) . '">Read More...';
}
add_filter('the_excerpt', 'excerpt_read_more_link');

I wanna translate that "Read More..." text between Chinese and Eng.

I've try everything, like abstract plugin and wpcasa forum, but no one can solve my problem.

Thanks anyway!