We normally think of teaching as a synchronic process, you and I are in the same place and in the same time while we are learning, when in fact at least right now we are not.

我们通常设想教学是限于一时的过程，你我在同一地点,同一时间学习，但事实上至少现在就不是这样。

麻省理工公开课 - 媒体、教育、市场课程节选

Third, America both needs and wants a president who is a strong supporter of business and a less interfering state, while at the same time being liberal when it comes to social issues such as gay marriage, gun control and immigration reform.

ECONOMIST: Christopher Lockwood bemoans reality

Finally, there is the overarching truth (indeed, requirement) that in a system of true free-market capitalism, two parties enter into a transaction only when they are both made better off, while at the same time not trampling the rights of a third party.

FORBES

In theory, telehealth can cut the cost of care while at the same time improving its quality (for example, by letting doctors know about crucial changes when they happen, not at the patient's next appointment).

BBC: Are the benefits of telehealth a myth?