1.China - ASEAN Economic and trade cooperation is in the history the most active, the most productive period.
中国-东盟经贸合作正处于历史上最活跃、最富有成效的时期。
2.Make the two weeks "off" the most productive period you've ever had at work.
让你离开的这两个星期成为最高产的时期。
3.For productive period of private time, while frightening, lonely void. for others it is a
对于某些孩子来说，这是一段属于他们自己的有所作为的时间，而对于另一些孩子来说则是令人恐惧的、孤独的空虚。