Don,t eat in the library不要在图书馆里吃
Keep quiet,please请保持安静
you should reture the book on time你应该按时把借的图书还给图书
Don,t draw or write anything on the page不要在书上乱涂乱画
Do not enter禁止入内
Don,t eat in the library不要在图书馆里吃
Keep quiet,please请保持安静
you should reture the book on time你应该按时把借的图书还给图书
Don,t draw or write anything on the page不要在书上乱涂乱画
Do not enter禁止入内