红包 (中)red paper containing money as a gift, (贬) bribe, kickback
红帽子企业 red cap enterprise (refers to the reputation a private enterprise enjoys by becoming attached to a government department and doing business in the name of a state-run or collective-run enterprise)
红细胞生成素 Erythropoietin (EPO)
环太平洋地区 Pacific Rim
后防空虚 leave the defense exposed