Many people contributed to the Manhattan Project, the American effort that led to the Trinity test, but one man truly bore responsibility for the creation of the atomic bomb — J. Robert Oppenheimer.

许多人为曼哈顿计划做出了贡献，这项美国竭力主导“三位一体”试验，但原子弹的制造真正的负责人是J·罗伯特·奥本海默。

The Manhattan Project, the US government's programme to develop a nuclear weapon, was initiated on a piecemeal basis late in 1939, just weeks after the receipt of the Einstein-Szilard Letter.

曼哈顿计划是美国政府开发核武器的计划，于 1939 年末，即收到爱因斯坦-西拉德信函几周后，零碎启动。