中国首款重型隐形战斗机歼-20周二在珠海航展公开亮相。请看本报昨日的报道：

    China’s J-20 stealth fighter made its public debut Tuesday at the 11th China International Aviation & Aerospace Exhibition in Zhuhai in Guangdong Province.

    Two of the fifth-generation warplanes performed a series of maneuvers under overcast skies at the six-day biennial event.

    报道中的stealth fighter就是“隐形战斗机”，指很难被雷达识别跟踪的战斗机，最早的隐形技术研究始于二战期间的德国。Stealth就是“秘密行动、偷偷摸摸”。例如:

    The engineers’ goal was to determine whether the stealth fighter was truly radar resistant.

    工程师们的目标是测定这架隐形战机是否真能躲开雷达。