This character can also be written as '怱' instead of '忩'.

His explanation was unclear, making it difficult to understand.

He is blessed with good luck.

He studied all night for the exam and examined the exam questions.

Aki always had a clear heart, illuminating the people around him brightly.

The exam in the latter period was difficult.

This vast space makes you feel free.

The washi paper made from the paper mulberry tree is highly valued for its quality.

I will make more effort every day.

Mercury is a very harmful element for the body.