You'll notice the ink fading within a matter of minutes - and it will be completely gone within 48 hours.

你会发现，几分钟后，写下的文字就会慢慢变淡，在48小时内会完全消失。

youdao

You'll notice the ink fading within a matter of minutes - and it will be completely gone within 48 hours.

你会发现，几分钟后，写下的文字就会慢慢变淡，在48小时内会完全消失。

youdao