What are the "heartbreaking" lines?

1, "Full Moon, Sad Mo Wen Past"

Yuan Dynasty: Ni Zan

Don't ask about the sad past of the previous dynasty, I went back to Yuewangtai.

Partridges are singing, the east wind blows to the first green and the sun is fading in bloom.

I looked at the sky alone with sadness. The mountains were still there, and my country was not there. There were mossy trees everywhere, and it was desolate.

The bright moon overhead, soft and bright, still shines on the previous dynasty, but where did it come from?

2. Goat Tongguan Nostalgia

Yuan dynasty: Zhang

The peaks are like gathering, the waves are like anger, and the mountains and rivers are like Tongguan Road. Looking at the western capital, I hesitated.

Sad Qin and Han dynasties, ten thousand palaces have been made of earth. Xing, the people suffer; Death, people suffer!

3. "Bodhisattva Man Lin Ping Mo Yan Ruzhi"

Tang Dynasty: Li Bai

The flat forest is misty, and the cold mountain area is compassionate. When the color enters a tall building, someone upstairs is worried.

The jade steps stand empty, and the birds fly quickly. Where is the return trip? Long pavilion with short pavilion.

4. "Two Poems by Shen Yuan"

Song dynasty: Lu you

On the city, the setting sun draws a corner to mourn, and the non-pool platform in the garden is revived.

Under the sad bridge, the spring waves are green, which used to be a stunning photo.

The dream is broken and fragrant for forty years, but the willow in Shenyuan doesn't blow cotton.

This body is a land of mountains and mountains, or a trace of death.

5. Look at the night in Jinling

Tang Dynasty: Gaochan

I used to accompany the clouds to dusk, and I still accompany the sunset to the autumn sound.

There are infinite painters in the world, and a piece of sadness can't be painted.