增加：在缺词处加一个漏字符号(Λ)),并在其下面写出该加的词；
删除：把多余的词用(\)划掉；
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：
⒈每处错误及其修改均仅限一词；
⒉只允许修改5处，多者(从第6处起)不计分。
World Laughter Day was first starting in Mumbai, India in 1998 by Madan Kataria. He was family doctor and the founder of the worldwide Laughter Yoga movement. World Laughter Day celebrates world peace and encouraged people to make friends with each other. It is celebrated on the first Sunday of May every year. Laughing makes everybody feels good, and it is also a good way to help people get along with better.
