in the middle of rivers, with just one underwater entrance. They also make dams (大坝) by using branches... several generations (几代) of beavers have been working on this dam since the 1970s. Beavers’ dams can ……

. shake D. turn off2. To remove big pieces of dirt in our keyboard, we can _____.A. put the keyboard under the tap and wash itB. shake the laptop hard until the dirt fall out C. turn the laptop upside ……

More people are looking into underwater ventures. TUCHONGMore people are looking into underwater..., underwater resorts have been popping up in recent years. For those with a truly adventurous spirit ……

the underwater world. ICMore people like to explore the underwater world. ICEvery day people board... hotspots (水中热点).From the expensive to the modest, underwater resorts (旅游胜地) have been popping up ……

探秘海洋世界的摄影大赛！What does the world look like underwater? You can find it out in a special competition (比赛) – Underwater Photographer of the Year (年度水下摄影大赛). People hold the competition every year ……

水下惊艳时刻纪录生命的灵动水下惊艳时刻纪录生命的灵动The underwater world is always mysterious (神秘的). It is hard for many...’s take a look at a few of them.The underwater world is always mysterious (神秘的). It is hard for many ……

and again. No matter how it hurt, the old donkey fought hard to shake the dirt off and climb up!Before long... and more dirt hit his back, an ideastruck(产生于头脑中) him: he should shake it off and climb up!"Shake it off ……

the underwater world and even do the housework. But do they ever get tired? They don’t because they have... that a Roomba robot in Austria may have killed itself. The robot’s job was to clear all the dirt ……

. It's hard to find work digging around in the dirt for ancient remains. When Seth thought about... graduated, he got a trendy white-collar job working with computer software. How'd this happen?Seth ……

protect and inherit (传承) our hard-to-notice yet still important underwater cultural heritage... more urgent. To better protect and inherit (传承) our hard-to-notice yet still important ……

US working adults who use hard-copy listings at: ……

Project on November 6, hundreds ofarchaeologists(考古学家) were working hard to protectcultural relics....The protection of Baiheliang is special andunique(独特的). It will be turned into an underwater museum.Architects ……

of the underwater dance looked like a mural (壁画). But working underwater wasn’t easy. It took... of the underwater dance looked like a mural (壁画). But working underwater wasn’t easy. It took ……

of the underwater dance looked like a mural (壁画). But working underwater wasn’t easy. It took... frame of the underwater dance looked like a mural (壁画). But working underwater wasn’t easy ……

About 75% of all volcanoes (火山) are underwater (在水下). ……