心间

míng jì zài xīn jiān

铭记在心间

commit firmly to memory

nín lái shàng hǎi cān guān de měi hǎo huí yì huì yǒng yuǎn zhù liú wǒ xīn jiān

您来上海参观的美好回忆会永远驻留我心间！

The nice memory of your visit to Shanghai will remain in my mind forever!