单词	折叠与展开
释义	折叠与展开 fold and unfold
随便看	standard of resistance standard of right standard of rights standard of roundness Standard of sawmill engineering design standard of scholarship Standard of Science Education standard of scrapping standard of security standard of security guard Standard of sentencing standard of service standard of size standard of social control standard of social responsibility standard of specialty instruction standard of stable isotope standard of subdivision standard of subjeetivism standard of subsistence allowances standard of surveying and mapping standard of talents standard of taxation standard of test technology standard of texture