stealth

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++stealth /stelθ/ noun [uncountable]  1  QUIETHIDE/MAKE IT HARD TO FIND OR SEEwhen you do something very quietly, slowly, or secretly, so that no one notices you 悄悄的行动，秘密行动 Cats rely on stealth to catch their prey. 猫科动物靠偷袭捕捉猎物。2  (also Stealth) a system of making military aircraft that cannot be discovered by radar instruments 〔战斗机的〕隐形技术stealth bomber/aircraft/fighter etc (=a plane made using this system) 隐形轰炸机/飞机/战斗机等

Examples from the Corpus

stealth• The Air Force has made its radar-evading B-2 stealth bombers even harder to find in the air.• stealth technology• A white sloop moved upriver in the dark, a little mystery of grace and stealth.• This is another instance of the novelist promoting his dearest values by stealth.• Much of its stealth comes from a design that minimises the chance of radar waves bouncing back the way they came.• Newer stealth planes, including the B-2 bomber and the F-22, use the curve structure pioneered by Tacit Blue.• There is more to the YF-22 than stealth.• Liz ran, dragging Anna, their footsteps thundering; stealth would take too long.• They would use stealth, lull me into thinking there was no danger.stealth bomber/aircraft/fighter etc• The Air Force has made its radar-evading B-2 stealth bombers even harder to find in the air.• And Lockheed Martin now wants clearance to export the new F-22 stealth fighter.• The Air Force intends the F-22 stealth fighter to be the grimmest perdition to darken the skies since mythological times.• A new, all-but-invisible stealth fighter was no exception.Origin stealth (1200-1300) From an unrecorded Old English stælth “stealing”

stealth nounChinese  

Corpus quietly, something or secretly, when do very that slowly, so you

stealth
stealth /stelθ/ noun [uncountable]1. when you do something very quietly, slowly, or secretly, so that no one notices you:
    Cats rely on stealth to catch their prey.
2. (also Stealth) a system of making military aircraft that cannot be discovered by radar instruments
    stealth bomber/aircraft/fighter etc (=a plane made using this system)