The form is perforated to make detachment of the bottom section easier.表格上打有孔眼便于将底下部分撕下。They caught him peeking through the hole at what was going on in the room.他正从孔眼偷看房内发生的事情的时候被他们抓了个正着。When held to the light the small oblong leaves are seen to possess tiny perforations.迎着光看时,就会发现椭圆形小叶子上有微小的孔眼。