pre·cau·tion/prɪ`kɔʃən; prɪˈkɔːʃən/ n [C] something that you do to prevent something bad or dangerous from happening 预防措施: fire precautions 防火措施 + against precautions against theft 防盗措施 take the precaution of I took the precaution of telling the police we were going away. 我们告诉警察说要出远门以防万一。