能正确翻译的奖励高分

There is a love letter which cannnot be posted in everyone's heart.
or
There is a love letter in everyone's heart, but it just cannot be posted.

“情书”也可是
billet-doux

Everybody has a love letter which can not be sent out（posted,delivered）!

纯属手工，一定正确 ，望楼主采纳！

There is a love letter in the bottom of everyone's heart which cannot be delivered.

There is a love letter can not be mailed in each individual heart .

every heart envelopes a love letter which cannot be released

爱在心中却难开口
there is a love in you heart,but it is hard to say it in word
每个人心中都有一封寄不出的情书

everone have a love letter which cannot be post in everyone's heart