He looked cautiously through a half-inch space between the curtains and saw an empty bedroom.他小心翼翼地透过窗帘上的一条半英寸的缝隙望去，看见了一个空荡荡的卧室。Cut the onion into half-inch cubes.把洋葱切成半英寸的丁儿。Even in England, half-inch diameter hail stones are not unusual.即使在英格兰，直径半英寸的冰雹并不罕见。