a dog of Shu barking at the sun (because it is a rare sight in that misty region)—an ignorant person making a fuss about sth which he alone finds strange; excitement over nothing
? 你怎么像～一樣如此少見多怪？ Why are you so ignorant as to behave like the dog of Shu barking at the sun?
蜀犬吠日shu quan fei ri
Sichuan dogs bark at the sun (because it’s a rare sight in that misty region)—ignorant people are easily surprised
蜀犬吠日shǔ quǎn fèi rì
蜀：四川的簡稱；吠：狗叫。因四川地區(qū)霧非常大，狗經(jīng)常見不到太陽，一旦太陽出來了，狗就叫。譏諷人少見多怪。an ignorant person makes a fuss about sth. which he alone finds strange