blue sky 详细解释

blue sky

['blu:'skai]

[ blue sky ]

adj. 不可靠的, 无价值的

词形变化

形容词: blue-ribbon |

英英释义

名词 blue sky:

the sky as viewed during daylight

同义词:blue, blue air, wild blue yonder

形容词 blue sky:

without immediate commercial value

同义词:blue-sky