空军 Traditional (Taiwan): 空軍 On the HSK 6 vocabulary list, at CEFR level C2. kōngjūn ㄎㄨㄥ ㄐㄩㄣ air force to fail to catch anything (on a fishing trip) to get skunked slang Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT