"First flight of a Navy unmanned X-plane — that's a huge deal, but it's just one of the many firsts to come out of this program," Engdahl said.

Engdahl还说“这是海军无人验证机的第一次飞行，这可是大事儿，但仍然仅仅是这一项目的开始而已”。

youdao

"First flight of a Navy unmanned X-plane — that's a huge deal, but it's just one of the many firsts to come out of this program," Engdahl said.

Engdahl还说“这是海军无人验证机的第一次飞行，这可是大事儿，但仍然仅仅是这一项目的开始而已”。

youdao