The technology development and aging. This is a good topic. According to the National Bureau of Statistics, the number of people aged 60 and above was 253.88 million in 2019, that is 18.1 percent of China’s population. But only 23 percent of the senior citizens were able to access the internet. With the advent of online payment, which greatly makes our lives easier. Wherever we go, we can make payment

题目描述 给出一个 32 位的有符号整数，你需要将这个整数中每位上的数字进行反转。 示例 1: 1 2 输入: 123 输出: 321 示例 2: 1 2 输入: -123 输出: -321 示例 3: 1 2 输入

题目概述 判断一个整数是否是回文数。回文数是指正序（从左向右）和倒序（从右向左）读都是一样的整数。 示例 1: 1 2 输入: 121 输出: true 示例 2: 1 2 3 输入:

题目概述 罗马数字包含以下七种字符: I， V， X， L，C，D 和 M。 字符 数值 I 1 V 5 X 10 L 50 C 100 D 500 M 1000 例如， 罗马数字 2 写做 II ，即为两个并列的 1。

Today, I want to share one of my favorite English poems. It’s about love, deep love. It’s hard to find someone who understand me. If I love a girl, I hope she can accept my good side and bad side. I can give her all my things. Would you like listen my story? What Can I Hold You With? I offer you lean streets, desperate sunsets, the moon of the

Today, I want to share a cartoon drawing a family flee their home owing to the war and meet the pandemic. The story is compact but make me ponder. I will slice the picture into many parts and translate the words into Chinese. War, Poverty and Pandemic Families flee their homes to save their lives but they can’t outrun the coronavirus. By Heather Murdock and Brian Williamson | VOA News

Seven steps can stop bad information We want to help our family and friends when we read some information going viral on the internet, especially COVID-19. Here are some advice to help us avoid the fishy site. 1 Stop and think One thing you can do to halt misinformation is to simply stop and think. If you have any doubts, pause, and check it out further. 2 Check your source

###英语48个国际音标 元音 or 辅音 音标 单元音 /i:/ /ɪ/ /e/ /æ/ /ɜ:/ /ə/, /ɑ:/ /ʌ/ /ɔ:/ /ɒ/ /u:/ /ʊ/ 双元音 /aɪ/ /eɪ/ /aʊ

今天发小的妹妹相亲见面，对于老家这边的习俗简单记录一下。 在老家这边，对于那些年龄稍大还未成亲的孩子来讲，相亲-结婚，似乎是很多人要走的一段人

今天中午的时候，大伯家的二姐带着她儿子来找我补习英语，小孩子已经读到了五年级。说是英语相对其他功课而言很是不好，希望我教他读一下学过的英文单