标签：话题作文 话题 英语四级作文
字数：1200字
提要：BloodWhat is blood? It is the red liquid which comes out of your finger when you cut it because of not being careful There are about 13 pints (品脱) of blood in a man＇s body. He can give a pfnt of Mood at a time to a Mood bank for the use a other man who may need it. A healthy body makes up the pint of blood quickly.What does our blood do for us? It takes food to all parts of our bodies and takes..