assembled-tower erection

例句：

1. 1. The engineers assembled thetower before the ceremony.
   在仪式前，工程师们组装了这座塔。
2. 2. The tower waserected as a symbol of peace andprosperity.
   这座塔被建造为和平与繁荣的象征。
3. 3. The tower's construction was completedin three years.
   这座塔的建设用了三年时间完成。