. It’s one of the world’s most famous invention fairs (发明展) and has been held since 1901. ... that would be safer for kids.Zhang’s window uses a pulley (滑轮) system that is triggered (触发) when ……

的) gun in the world. It can fire bullets (子弹) at eight times the speed of sound and hit targets (目标... targets about 20km away. The US Navy (海军) hopes the new gun will allow them to fire from a much safer ……

a soft robot. It is called Octobot.The world’s first soft robot looks like an octopus. It is made... the robot’s body and makes it dance.Scientists say that soft robots are safer around humans ……

already taken measures to make their campuses safer. They have hired more guards and provided teachers... now, a measure that has caused inconvenience but which is doubtless necessary. I hope that schools ……

world trade forward and make the world safer. The first meeting of APEC was in 1989. It wants more ……

CHINA hopes to become a world leader in information technology with the launch of the national Next... highway in the world. With its 10G bites per second transfer speed, a DVD movie, which currently ……

this and hope every boy and girl can live in a healthier and safer world,” said director Zhou Sun. ... and safer world,” said director Zhou Sun.  TEENS ……

the UK. This is a column where I help solve Teens readers’ problems. I hope I can help you...’ problems. I hope I can help you with yours.Dear Alex,Dear Alex,One day on the bus I saw a man standing ……

全球首颗3D打印心脏诞生！Today, people who need heart transplants (移植) must wait and hope to receive a donation... a major achievement. The World Health Organization (WHO) says more people die each year from heart ……

"Xiaoqiang"。 I don't hate her. It's just a joke. I hope she understands.Wang Zixian:aa可乐 (Cola)You may think it's a boy's name. But that's why I like it. Thecyber(网络的) world is a little dangerous ……

beloved families. However, people from around the world saved us from despair (绝望) with their love,” Luo said. “We hope our support will help them overcome the disaster. We’re all from the same family ……

percent of 5G users in the world are in China. There are more than 2.312 million 5G base stations (基站... can send data (数据) faster and safer than 5G, reported Xinhua.The number of 5G users in China reached ……

and again, and gives advice to make the slides safer and better. Though (尽管) there is also a serious (严肃的) side to this job, Lynch still calls it “the best job in the world”. This job gives him ……

is safer. A sad fact of the world is that some people just want to make life harder for others... solve TEENS readers’ problems. I hope I can help you with yours.I’m Daniel Daugherty, your ……

and water and safer foods in the UK, but all my family and most of my friends are in China,” said Fang... overtook Japan to become the world’s second largest economy, helping it to offer its people more ……