While reviewing the adopted strategies in the process of polio eradication, two points should be emphasized: (1) To raise the OPV immunization coverage rate unceasingly.是什么意思_While reviewing the adopted strategies in the process of polio eradication, two points should be emphasized: (1) To raise the OPV immunization coverage rate unceasingly.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句