Let's learn the method to derive the initial letter of a mora using a semi-voiced sound mark.

The Korean Peninsula is located in East Asia.

This character needs a semi-voiced mark.

His opinion is completely opposite to my position.

We deeply reconsider this failure and strive not to make the same mistake again.

I deeply regret my past actions.

Have you seen my handkerchief?

What is the half-life of this substance?

The earth is divided into the northern hemisphere and the southern hemisphere.

We plan to sell our new product nationwide.