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1 Old HSK word(s):
☊
空
洞
*
*
D
防
空
洞
*
*
Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
防
defend / prevent / embankment
空
empty, hollow, bare, deserted
洞
cave, grotto / ravine / hole
Hsk Characters:
HSK -Characters and beyond:
Gb
Big5
Eng
Rad
Mega
Triple
Multilingual
from: Universala Vortaro, Zamenhof
Hohlwelle (S)Kaverne (S)schalen (V)hohl (Adj)
[kong1 dong4]
空洞
Luftschutzbunker (Mil)
[fang2 kong1 dong4]
防空洞
nichtssagend, ohne Substanz (S)nichtig (Adj)
[kong1 dong4 wu2 wu4]
空洞无物
Ozonloch (S)
[chou4 yang3 ceng2 kong1 dong4]
臭氧层空洞
Ozonloch (S)
[chou4 yang3 kong1 dong4]
臭氧空洞
Theorie der hohlen Erde (S)
[di4 qiu2 kong1 dong4 shuo1]
地球空洞说