fold: n.1.折,折叠。2.褶痕,褶层,褶页。3.(蛇,蝇等的)一卷,一团。4.(起伏地的)凹处,洼;〔pl.〕(地形的)重叠起伏;【地质学;地理学】褶皱。5.【动物;动物学】(腕足类的)中隆。6.【解剖学】褶。短语和例子Another fold give a 32mo. 再一折就是32开。vt.1.折叠;对折 (back in over together up)。2.合拢;交叠
arcs: 短语和例子ARCS =1.Associate of the Royal College of Surgeons (英国)皇家外科医师协会准会员。2.Associate of the Royal College of Science (英国)皇家科学协会准会员。3.Australian Red Cross Society 澳大利亚红十字会。