Noun 名詞
1. the area above the Earth that you can see
空
a blue sky
Test
1 / 5
I keep a cat. ( ) cat is black.
2 / 5
I didn't accept his invitation.
3 / 5
The ostrich has lost the ability to fly.
4 / 5
the most basic aspects of reading and writing
5 / 5
about six hundred people
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