He is struggling with the spelling pronunciation of English.

Learning about the nasal sound rule in Japanese is very important for understanding pronunciation.

Akira is always clear-minded and sincere.

A beautiful holly osmanthus is planted in the garden.

Shu is the most excellent student in his class.

Understanding geometric series is important for understanding mathematics.

He bought stocks at that exchange.

That theory is unscientific and has no evidence at all.

Debuccalization refers to the phenomenon in phonetics where a specific sound is pronounced outside the oral cavity.

In this chemical experiment, there is a possibility that arsine may be generated.