变成 (biàn chéng): 変わる; 変身する; になる

The little sapling grew into a big tree.

She changed from a student to a teacher.

When water is heated, it turns into steam.

This city has become a popular tourist spot.

The weather turned cold, and the water turned into ice.

He worked hard and finally became a doctor.

Caterpillars can change into butterflies.

The plan became a reality.