Thiazole is an important compound in organic chemistry.

In organic chemistry, thiazine is one of the important compounds.

I submitted a petition to the mayor asking for the preservation of the park.

We petitioned the mayor for improvements to the park.

He started exercises to strengthen his gluteus medius muscle.

This word uses the long-vowel mark.

Tch, it's raining again.

Please check the checklist.

That person is late again. Ugh, unbelievable.

Che is my best friend.