The moon on the sixteenth night is beautiful, isn't it?

He is excited to learn new technology, truly embodying the phrase 'you're never too old to learn'.

My grandfather is eighty-eight years old.

Mr. Hachijuhachi is my best friend.

He was drawing a pentadecagon shape.

He drew a hendecagon shape.

He drew a tetradecagon shape.

He drew a dodecagon shape.

He is good at drawing a heptadecagon.

He was drawing a hexadecagon shape.