| Reptiles have armoured scaly skins that protect them from the stinging grains. For insects the bombardment can be very severe indeed. The only escape is below the surface. As the winds rise and fall, swirl and eddy so they pile the sand into dunes. These sand seas can be hundreds of miles across. In Namibia the winds have built some of the biggest dunes in the world. Star dunes like these can be 300 metres high. Grains, swept up the flanks, are blown off the crests of the ridges so it's only the tops that are moving. The main body of these dunes may not have shifted for 5,000 years. | |
| 爬行动物的皮肤有鳞片的保护，可以使自己免遭沙尘针刺般的撞击，对昆虫来说，这种轰炸可能是致命的唯一的办法是钻到沙子里面，风起风息风旋风转，把沙子吹成了沙丘这种沙海有的直径可达几百公里。在纳米比亚，风形成了世界上最大的一批沙丘，像这样的星状沙丘，可能高达300米，两侧的沙粒被吹起来，吹过山脊，所以只有沙丘顶部在移动，这些沙丘的主体，可能已经5000年没有移动过。 |
| Reptiles have armoured scaly skins that protect them from the stinging grains. For insects the bombardment can be very severe indeed. The only escape is below the surface. As the winds rise and fall, swirl and eddy so they pile the sand into dunes. These sand seas can be hundreds of miles across. In Namibia the winds have built some of the biggest dunes in the world. Star dunes like these can be 300 metres high. Grains, swept up the flanks, are blown off the crests of the ridges so it' s only the tops that are moving. The main body of these dunes may not have shifted for 5, 000 years. | |
| pa xing dong wu de pi fu you lin pian de bao hu, ke yi shi zi ji mian zao sha chen zhen ci ban de zhuang ji, dui kun chong lai shuo, zhe zhong hong zha ke neng shi zhi ming de wei yi de ban fa shi zuan dao sha zi li mian, feng qi feng xi feng xuan feng zhuan, ba sha zi chui cheng le sha qiu zhe zhong sha hai you de zhi jing ke da ji bai gong li. zai na mi bi ya, feng xing cheng le shi jie shang zui da de yi pi sha qiu, xiang zhe yang de xing zhuang sha qiu, ke neng gao da 300 mi, liang ce de sha li bei chui qi lai, chui guo shan ji, suo yi zhi you sha qiu ding bu zai yi dong, zhei xie sha qiu de zhu ti, ke neng yi jing 5000 nian mei you yi dong guo. |
| Reptiles have armoured scaly skins that protect them from the stinging grains. For insects the bombardment can be very severe indeed. The only escape is below the surface. As the winds rise and fall, swirl and eddy so they pile the sand into dunes. These sand seas can be hundreds of miles across. In Namibia the winds have built some of the biggest dunes in the world. Star dunes like these can be 300 metres high. Grains, swept up the flanks, are blown off the crests of the ridges so it' s only the tops that are moving. The main body of these dunes may not have shifted for 5, 000 years. | |
| pá xíng dòng wù de pí fū yǒu lín piàn de bǎo hù, kě yǐ shǐ zì jǐ miǎn zāo shā chén zhēn cì bān de zhuàng jī, duì kūn chóng lái shuō, zhè zhǒng hōng zhà kě néng shì zhì mìng de wéi yī de bàn fǎ shì zuān dào shā zi lǐ miàn, fēng qǐ fēng xī fēng xuàn fēng zhuǎn, bǎ shā zi chuī chéng le shā qiū zhè zhǒng shā hǎi yǒu de zhí jìng kě dá jǐ bǎi gōng lǐ. zài nà mǐ bǐ yà, fēng xíng chéng le shì jiè shang zuì dà de yī pī shā qiū, xiàng zhè yàng de xīng zhuàng shā qiū, kě néng gāo dá 300 mǐ, liǎng cè de shā lì bèi chuī qǐ lái, chuī guò shān jǐ, suǒ yǐ zhǐ yǒu shā qiū dǐng bù zài yí dòng, zhèi xiē shā qiū de zhǔ tǐ, kě néng yǐ jīng 5000 nián méi yǒu yí dòng guò. |
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