pea soup
noun [ U ] uk/ˌpiː ˈsuːp/ us/ˌpiː ˈsuːp/
(FOOD)
（尤指用干豌豆煮沸做成的）豌豆汤
a soup made from peas, especially one made from dried peas that have been boiled
(FOG)
US old-fashioned informal (UK pea-souper)浓雾
a very thick fog