The e Road Not taken 没有选择的道路
Uncontrolled airspace is designated Class F, while controlled airspace below 5,490m above sea level and not in the vicinity of an airport is Class E.
无交通管制的空域被定为等级 F,而低于海拔5490米、不在机场附近的管制空域是等级 E。
A spokeswoman for Microsoft said that the issue of missing e-mails was not a widespread problem.
微软的一位女发言人说,丢失电子邮件的问题并不是一个普遍的问题。
Not having received a reply, the anxious mother decided to send an e-mail to her daughter abroad again.
由于没有收到回信,这位焦急的母亲决定再给她在国外的女儿发一封电子邮件。
The spokeswoman says if you get an e-mail you are not sure about, forward it or send a separate message to ContactETS@ets.org.
VOA: special.2010.02.18
How many of you did not bring the passages that I sent to you by e-mail last night?
你们中有多少人没有带讲义,我昨晚用邮件发给你们的?
And there's actually a way that we can make predictions here, and what I'll tell you is molecular orbital theory predicts that h e 2 does not exist because it's not stabilized in terms of forming the molecule.
其实我们有一种办法可以做出预测,我要告诉你们的是分子轨道,理论预测He2不存在,因为它形成分子不稳定。
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