These two lines are from "In the Road of Three Quarters" by Zeng Gui, a poet of the Song Dynasty.

Originally:

The days are clear when the plums are yellow, and the brooks are flooded but the mountains are walking.

The green shade does not diminish the road from which I came, adding four or five orioles.

Translation:

When the plums were yellow, every day was fine and sunny.

Taking a canoe, I traveled along the creek, and when I came to the end of the creek, I changed to the mountain road to continue my journey.

The verdant trees on the mountain road were as dense as when they came,

A few orioles chirped merrily from the deep forest bushes, adding some more ethereal interest than when they came.

About the author:

Zeng Gui (1085--1166) was a Chinese poet of the Southern Song Dynasty. His first name was Ganzhou (present-day Jiangxi Province), and his first name was Chashanjushi. His first Ganzhou (present-day Gan County, Jiangxi Province), migrated to Henan Province (present-day Luoyang, Henan Province). He served as a torturer in Jiangxi and Zhejiang, as a secretary, and as a minister in the Ministry of Rites. Zeng Qi was very learned and diligent in political affairs. His student, Lu You, wrote an epitaph for him, saying that he was "a scholar of the classics and a scholar of the Tao, and he wrote articles that were elegant and pure, and his poems were especially skillful." Later generations included him in the Jiangxi School of Poetry. Most of his poems are lyrical and playful, and he sings and gives gifts to his friends, which are elegant and light. The poems in five or seven lines are characterized by natural counterpoints and smooth rhythms. Ancient poems such as "Gift to the Empty Man" and recent poems such as "Nightfall in Nanshan" are all of great merit. His book Yi xiexiang (The Interpretation of the Elephant) and his anthology have been lost. The Siku Quanshu has Chashanji 8 volumes, edited from the Yongle Dadian.