completion
/kəmˈpli:ʃn; kəm`pliʃən/ n[U]
1
(a) action of completing 完成（指动作）
Completion of the building work is taking longer than expected. 建筑工程的竣工比预计的时间要长.
(b) state of being complete 完成
The film is nearing completion. 电影制作即将完成.
[attrib 作定语]
its completion date 完成的日期.
2 (commerce 商) formal completing of a contract of sale （销售契约手续的）正式完成
You may move into the house on completion. 办完房屋买卖契约手续後, 你就可以搬进去.