We have become citizens of the world and yet have maintained close ties with our loved ones, thanks in part to the widespread availability of E-mail.
我们成了世界公民，而且还与我们爱的人保持亲密联系，在某种程度上要感谢电子邮件的广泛应用。
On a paper document (save a tree, send E-mail) it's typical to close the document with the following.
在纸质文档(保护树木，请用电邮)的末尾，使用手工签名是一种常见的做法，如下所示。
Many natural phenomena and natural disasters have close relation with granular materials avalanche, i. e. sand dune development and movement, debris flow, snowslide and earthquake.
沙丘发育和前移、泥石流、雪崩、地震等诸多自然现象和自然灾害都与颗粒物质的崩塌有着紧密的联系。
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