The Hanyu Pinyin romanization of 春卷 is chūn juǎn.
The Chinese name 春卷 literally combines 春, meaning “spring,” with 卷, meaning “roll.” In Hanyu Pinyin, the first syllable is chūn with a first tone, and the second is juǎn with a third tone. The macrons and caron are tone marks, not optional decoration when precise pronunciation is being represented.
Spring rolls are associated with the arrival of spring and historically developed from pancakes filled with newly available seasonal vegetables. In mainland China, they are especially associated with springtime festivals, including the Spring Festival. Modern versions may contain vegetables, pork, or other fillings and are commonly fried until crisp.
The same characters can be pronounced differently in other Chinese varieties. For example, Cantonese romanization is not Hanyu Pinyin, so forms such as “cheun gyun” represent a different pronunciation system. Likewise, Taiwanese popiah is related to spring-roll traditions but is not the Hanyu Pinyin reading of 春卷.