我沉甸甸的,是一只书包。现在,我精疲力尽地倚靠在墙壁上。夜已深了,我很困,但必须等小主人上床、熄灯之后,我才能进入梦乡。此时,小主人正趴在写字台前,一旁的课本堆得像小山。我张着嘴,胃里装得满满的,肚皮都快被撑破了,我感觉胃疼。出于做功课的需要,小主人已经从我的体内取走了一部分书,但我仍旧能感觉到,胃 I heavy, is a school bag. Now, I'm leaning on the wall exhausted. Night is deep, I am sleepy, but must wait for the little master to go to bed, turn off the lights, I can go to sleep. At this point, the little master is lying in front of the desk, next to the pile of textbooks pile like a hill. I opened my mouth, filled my stomach, my belly was almost broken, and I felt a stomachache. Out of the need to do his homework, the little master has taken a portion of the book from my body, but I still can feel that the stomach