We earnestly hope that you will extend the credit by 15 days.

我们迫切希望你们可将信用证展期15天。

I earnestly hope to lead a healthy and prosperous life in the future.

莪诚实地渴望将来能过着康健而顺遂的一生。

We earnestly hope that you will extend the credit to 15th of this month.

我方诚挚地希望贵方将信用证延期到本月15日。

If really there is a girl, so supernatural, I earnestly hope you grant me one!

如果真的有那么一个姑娘，那么神啊，我祈求你赐我一个吧！

As the new academic year is far away, I earnestly hope know the results of my application.

由于新学年临近，我真诚地希望能让我知道其结果。