As an important component of the double-tier operation system, the collectiveoperation in China' s rural areas is based on the collective ownership of rural land.
农村集体统一经营以农村土地集体所有为基础，是双层经营制度的重要组成部分。
2
This may not have been an official joint operation, but it was almost certainly a collective effort.
也许这次并不是官方的联合行动，但几乎可以肯定是一次集体的努力。
3
The global community has demonstrated unprecedented levels of co-operation and collective action in dealing with SARS, influenza and other threats to bio-security.