a type of soup that contains small pieces of pasta (= a food made from flour and water) in the shape of letters

With alphabet soup, children can practise spelling while enjoying a tasty meal. 有了字母形面片汤，孩子们可以一边学习拼写，一边享用可口的食物。

a confused mixture that is difficult to understand, often because it contains a lot of abbreviations (= short forms of words) and acronyms (= abbreviations formed from the first letters of each word in the name of something)

Health plans have changed over the years into an alphabet soup of HMOs, PPOs, and now HSA and HRAs. 这些年来，医疗保险模式一变再变，成为艰涩难懂的代号语言，先是有HMOs和PPOs，现在又有了HSA和HRAs。