straw.4Stick(3) card head to the third thin straw.5Fix(4) the straw with head in the thick straw.6Here comes the traffic policeman!生词大本营1.thick 粗的2.apart 分开的3.stick 黏贴4.fix 使固定 ……

中国第一批机器人交警上岗啦！Keeping the streets in order is never easy. Traffic police (交警) in Handan, Hebei province, are getting some help from robots (机器人). A team of robots started to work with traffic police ……

The “traffic light man” looks cute. XINHUAThe “traffic light man” looks cute. XINHUA柏林红绿灯背后的设计巧思。柏林红绿灯背后的设计巧思。Traffic lights are usually round. They are either red, yellow ……

University (南京师范大学附属小学). She is a kid traffic police officer (少年交通警). She works with traffic police...,” Chen says proudly. There are 45 kid traffic police in the school. Traffic police teach students traffic ……

. These are the traffic police.There are more than 1.7 million policemen in China. The traffic police are just one...国际警察日MARCH 14 is International Police Day. It is a day for people to show their respect for police ……

我以后再也不敢乱穿马路了。WHAT will the police do if you hold up traffic on a busy road? They will give you... the dangers of running across lanes of traffic. But it didn’t work. The police had to arrest ……

Two brothers create a smart traffic police vest to facilitate police communicationTwo brothers create a smart traffic police vest to facilitate police communication福建 ……

, they learned how dangerous (危险的) drink driving really is. Their school also helped them learn traffic signs and police gestures (手势). The students learned more about traffic safety from these fun activities. ……

Cai Yifan (left) and Cai Yiming present their award-winning traffic police vest invention.  provided to teens        A smart traffic police vest wins ……

如何制作简易火箭？. ……

straw• Thin plastic straw that fits     easily inside large one• Styrofoam    (泡沫聚苯乙烯)• Soft plastic bottle• Modeling clay (黏土)• Large plastic straw ……

to go through the city when we came across traffic lights. Following the escort, our buses jumped several red lights. Someone on our bus said with a proud tone that in the city traffic police did ……

to their destinations.However, some bicycle riders show no respect for the traffic rules. Some even jump traffic lights with the police right alongside them.These riders assume the traffic rules are only ……

straw or a hollow plastic coffee-stirring stickScissorsDo this experiment on a kitchen or bathroom... the other cup next to it, sitting on the woodCut the big straw in half, put one end in the water ……

straw or a hollow plastic coffee-stirring stickScissorDo this experiment on a kitchen or bathroom... the other cup next to it, sitting on the woodCut the big straw in half, put one end in the water and lean ……