俄深知他唇会吻上她人俄深知她心会装上他人
[é shēn zhī tā chún huì wĕn shàng tā rén é shēn zhī tā xīn huì zhuāng shàng tā rén]
Here the person admits with sadness (expressed by "俄")(I), understanding fully, that his lips may kiss another person and she may hold someone else in her heart.