英语语法分析

The project was conceived and initiated by Ptolemy Soter around 290 BC, but was completed after his death, during the reign of his son Ptolemy Philadelphus.

这项工程是由托勒密索特在公元前290年左右策划和发起的，但在他死后，在他的儿子菲勒迪法的统治期间完成的。