假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中有10处错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
注意：1. 每处错误及其修改均仅限一词。
2. 只允许修改10处，多者(从11处起)不计分。
Welcome to the Polynesian Cultural Centre! You are entering a world of funs! My name is called Tera, a Polynesian name which mean “the sun”. I’m very glad you can come today and learn about some of the amazing Polynesian way. As you can see, here behind myself is one of their boats. To build a boat like this, you needed a very tall, straight tree. You first cut down the tree and remove the branch. Then you cut the tree in half so you have two long pieces of woods. You use one piece to make the boat. Remove the inside for a person to sit. Take the bark off the outside of the boat and puts oil on it so it will easily go through the sea. Some Polynesian boats have sails.