关于妹妹的英语日记带翻译
妹妹今年七岁，刚上大班下学期，她非常羡慕那些会做算术题的小朋友，所以，今天，他闹着要我给她出点口算题。
My sister is seven years old this year. She has just been in a big class for the next semester. She is very envious of those children who can do arithmetic problems. So today, he asked me to give her some oral arithmetic problems.
我出完了题目他就开始做起来。第一题“3+2”，她左手掰出2根手指头，右手掰出3根手指头，一看，等于“5”.她得意地说：“这也太容易了吧。”第2题“4+7”，她还是按照之前的做法，一看，少了1，于是他就找来了一支笔，一算，等于“11”。第3题“19+20”，他又按照之前的.算法，一算，少了很多，于是，她就找来我文具盒里的10支笔，一算，还是不够，于是他开始费尽脑汁地想，最后，她就自言自语说：“算术可真难啊!”
He began to work when I finished the problem. The first question is “3 + 2”. She broke two fingers in her left hand and three fingers in her right hand. At first sight, it’s equal to “5”. She proudly said, “it’s too easy.” In the second question, “4 + 7”, she still followed the previous practice. When she saw that there was less than 1, he found a pen, which was equal to “11”. In the third question, “19 + 20”, he calculated according to the previous algorithm, a lot less, so she found 10 pens in my pencil box, a calculation, or not enough, so he began to think hard, and finally, she said to herself, “arithmetic is really difficult!”