- 穴(row; gap)
- 工(craftsman; work)
An empty cave with nothing inside is just hollow space.
Size
Style
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aviation
中与飞行和飞机有关的事业或学科yǔ fēixíng hé fēijī yǒuguān de shìyè huò xuékē
The aviation industry is developing very rapidly.
aviation
中与飞行和飞机有关的事业或学科yǔ fēixíng hé fēijī yǒuguān de shìyè huò xuékē
The aviation industry is developing very rapidly.
An empty cave with nothing inside is just hollow space.
An empty cave with nothing inside is just hollow space.
aviation
aviation
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