blocker阻滯物、阻斷劑、阻滯抗體學術名詞阻礙者：農業推廣學成坯型｛鍛模｝：金屬材料阻斷劑：醫學英文釋義a football player whose responsibility is to block players attempting to stop an offensive playa class of drugs that inhibit (block) some biological process