词汇	teacher responsibility
释义	teacher responsibility 教师责任
随便看	biological filtration biological filtration layer biological filtration process biological filtration tower biological fingerprint Biological fingerprints Biological Fingerprint Techniques biological firebreak belt biological firebreak belts biological fire control biological fire prevention biological fire prevention belt biological fireproofing forest belt biological fire-protection forest belts biological fire-resistance biological fire-resistant biological fire-resistant forest belt biological fishery biological fitness biological fiuidized bed biological fixation biological fixation nitrogen biological fixed bed biological floatation biological floating bed