China – people there experienced severe smog (雾霾).“ burning smell in the air, and the thick fog just...) of pollution in the air with a diameter (直径) of 2.5 micrometers (微米) or less – reached 554 in some ……

治理PM2.5，共同呼唤蓝天。WE always check the weather before a trip. But after hearing a lot about air... by simply eating less street barbecues (烧烤)! Cooking them can result in air pollution. So, if you ……

in Antarctica that are blue. Glacial ice contains a lot of small air bubbles (气泡). The icebergs appear...QIANTUQIANTUWhat color are icebergs (冰山)? Just white or blue? Surprisingly, there are green ……

. There are also many icebergs in Antarctica that are blue. Glacial ice contains a lot of small air bubbles (气泡). The icebergs appear to be blue because the air bubbles reflect blue light.However ……

far too dark for the blue to show. What’s more, I had a lot more hair on my head than many... for it to bleach properly and I got a less than perfect result although I had bleached it one more time. So I ……

not to set off fireworks (烟花爆竹).The students did this to try to reduce air pollution. Since January, many cities in China have seen a lot of foggy days. In Beijing, only five days in January were free ……

even got a tattoo (纹身) that reads: “glorious (荣耀的)”.Now, at 80, I love my blue hair and the connections... the moment. Many onlookers watched too. On the day, I was filled with childlike excitement, but when I got ……

temperatures (温度). When you see the air from far away, it looks like a blue lake. But it’s really... about deserts.How big?世界上有多大的沙漠面积？A desert gets less than 25cm of rain every year. There are deserts ……

为什么天晴的时候天空总是蓝色的呢？WHY is a clear, cloudless daytime sky blue (unless clouds or smog make the sky grey)? Don't think this question is foolish. You'll learn a lot about colour if you get the answer ……

wore her favorite blue dress and didn’t wear shoes. There was no music, just the sound of the wind...中外婚礼大不同中外婚礼大不同At the end of April, I got married in China. My husband is Chinese. We held ……

in a primary school in Damxung county in Tibet. The experience has taught me a lot. Damxung is far to the north of Lhasa, and the average yearly household income in this remote place is less than 1,300 ……

Think the air pollution is so bad that you want it to just go away? Anirudh Sharma, a graduated... and printers a lot. “Usually, people don’t know about this, but the ink you’re buying is nothing. It’s just ……

Think the air pollution is so bad that you want it to just go away? Anirudh Sharma, a graduated... into the air. He’s even trying to turn it into something useful – ink. His invention, Kaalink, can ……

Playing a game of colorPlaying a game of color海水为什么是蓝色的？海水为什么是蓝色的？Why is the sea blue?Why is the sea blue?A. Because there is a blue color in it.A. Because there is a blue color in it.B. Because ……

or less” like Earth that is orbiting (绕……运行) Proxima Centauri, the star nearest to our solar system... to its red dwarf (矮小的) star than we are to the sun, the sky on its world is orange without any blue ……