沉甸甸 (chén diàn diàn): heavy

He carried a heavy suitcase in his hand and struggled up the stairs, his forehead covered in sweat.

Gazing at the golden rice fields, the farmers' hearts were heavy with the joy of a bountiful harvest.

Upon learning that he had failed the exam, his heart felt heavy, and he didn't even eat dinner.

My mother handed me a heavy package filled with homemade snacks.

Holding the heavy trophy, he felt that all his efforts had been rewarded.