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Choosing Mnemonics
Pick the mnemonic story that sticks best for you by clicking its ☆ — there's no wrong choice, and you'll be able to write your own soon. Then press Continue.
防空
Characters and words in 防空
to protect / to defend / to guard against / to prevent
empty / air / sky / in vain
to empty / vacant / unoccupied / space / leisure / free time
Words with 防空
Sentences with 防空
防空 currently does not appear in any sentence.
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