yueke/application/admin/lang/en/lesson.php

<?php

return [
    'Id'            => 'id',
    'Name'          => 'Name',
    'Name_en'       => 'Name(en)',
    'Image'         => 'Image',
    'Price'         => 'Price',
    'Oldprice'      => 'Old price',
    'Content'       => 'Content',
    'Content_en'    => 'Content(en)',
    'Lessoncate_id' => 'Lesson cate',
    'Is_show'       => 'Is show',
    'Is_show 1'     => 'up',
    'Is_show 0'     => 'down',
    'Weigh'         => 'Weigh',
    'Cate.name'     => 'Cate name',
    'Cate.name_en'  => 'Cate name(en)'
];