从列表索引中的每个字符串中提取缩略词

import re

def extract_abbreviations_from_list(lst):
    abbreviations = []
    for string in lst:
        # 使用正则表达式匹配字符串中的大写字母组合
        matches = re.findall(r'\b[A-Z]+\b', string)
        abbreviations.extend(matches)
    return abbreviations

# 示例输入列表
lst = ["World Health Organization", "United Nations", "National Aeronautics and Space Administration"]
abbreviations = extract_abbreviations_from_list(lst)
print(abbreviations)

['WHO', 'UN', 'NASA']