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N-COUNT A copter is a helicopter. 直升机 [非正式]
helicopter , whirlybird , verticraft
youdao
Islami said the rotor blade snapped off, the copter spun to the ground and burst into flames.
CNN: 2 killed as helicopter crashes into crane in central London
It's been a few years since news of Prox Dynamics' Black Hornet mini-copter has swung our way.
ENGADGET: And don't forget...
They determined that it was and began to kick around the idea of actually building a copter to prove it.
WSJ: Flight of Fancy: The Sky's the Limit for Team That Rises to the Occasion
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