上课的气氛要活跃一些 Active class atmosphere
史密斯先生总是鼓励学生在课堂上要活跃。
Mr.Smith always encourages his students to be active in class.
他们需要建立面对面的人际网,需要活跃于校友网。
They need to be doing face to face networking. They need to be active with their alumni associations.
研究显示,前者的大脑前扣带回皮层比后者要活跃的多。
The anterior cingulate cortex was activated considerably more in the former than in the latter.
It's got to have activity to play itself out as melody.
把它表现成旋律也必定要很活跃
This refers--this actually goes back to B.F. Skinner, a psychologist who flourished in the first half of this century.
这要追溯到B.F.斯金纳,一位活跃在上世纪前期的心理学家
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