What is the melting point of this substance in Celsius temperature?

Last night, I was startled by a sudden explosion sound.

A wonderful sound flowed from his piano.

He is good at playing the piano, and has a very good sense of sound.

This word requires an acute accent.

In schools, temperature measurements of students are taken every morning.

Every morning, I measure my temperature before going to school.

This instrument has beautiful overtones.

He is really an ungrateful person.

He completely forgot my help, acting like an ingrate.