增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词;
删除:把多余的词用斜线(\)划掉;
修改:在错的词下划一横线,并在该词下面写出修改后的词。
Today we went to the beach. We get up early and after a 2-hour bus ride, we arrived. Lucky for us, there was not many people there yet. The sky was blue but the sun was shining. The water was so clear!
We all swam in the sea and had good time. I did not dare to swim very far because I was afraid of be carried away by the ocean.
Before the swim, we lay on the beach. Bill hid both of his leg in the sand, which he thought it was very funny. It was a great day. I'll ever forget it.