常见例句But America's air force continued to experiment, converting a small jet-powered target drone, the Firebee, into an unmanned spy plane called the Lightning Bug. 但是美国空军仍没放弃进一步的试验，他们将一架小型喷气动力的靶机“火蜜蜂”转变为一架无人驾驶的侦察机，并取名为“闪电虫”。 返回 Firebee