friendica-addons/public_server/lang/zh-cn/strings.php

<?php

$a->strings["Administrator"] = "管理员";
$a->strings["Your account on %s will expire in a few days."] = "您账户在%s几天后过期了。";
$a->strings["Your Friendica account is about to expire."] = "您Friendica账户快过期。";