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概
念
驗
證
概
念
驗
證
Definitions4 characters
gai4 nian4 yan4 zheng4
proof of concept
Usage•••frequent
Pronunciations
概
念
驗
證

As word

1
gai4
proof of concept
2
nian4
proof of concept
3
yan4
proof of concept
4
zheng4
proof of concept