They teach us how to make pumpkin into lanterns.
= They teach us how we (can) make lanterns (of/from/with) pumpkins.
注:/ 表示可以任意选用其一.
They teach us how to make pumpkin into lanterns.
= They teach us how we (can) make lanterns (of/from/with) pumpkins.
注:/ 表示可以任意选用其一.