I found a bug when i install plugins.
example:
'_bx_sounds_view_alt_view' => '已浏览',
'_bx_sounds_view_alt_fav' => '已收藏',
I have been insert these codes to lang.php file, but it still show '_bx_sounds_view_alt_view' rather then '已浏览' at proscenium. That's why.
please refer to attachment.