It is not, however, a sign that they're getting serious about transforming the postal system for the 21st century.
然而，这并不是一个迹象，表明他们正认真致力于为21世纪改造邮政系统。
They're already used in dozens of countries worldwide.
目前，这些计划已在全球数十个国家得到应用。
Yet these objects aren't truly ephemeral, because they're still here, decades, even centuries later.
然而，这些物品并非真正短暂，因为它们至今仍然存在，甚至几十年、几个世纪之后依然如此。
Because they're tangible.
因为它们是有形的。
A cartoon mocks a group failing to converse because they're all in headphones.
一幅漫画讽刺了一群人因都戴着耳机而无法交谈。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。