Just Blue space - SKY地球人都听过
Blue-sky law兰天法;蓝法;蓝天法;证券交易管理法规
blue-sky scale林克标
blue- sky market露天市场
blue-sky stock不可靠的股票
Blue-sky research蓝天研究;唱片名
blue-sky vine大花邓伯花藤
blue-sky bargaining漫天讨价
blue-sky value售店的蓝天价值
N（名词） of or denoting theoretical research without regard to any future application of its result 表示“不考虑未来用途的理论研究”
a blue-sky project
V（动词） to theorize (about something that may not lead to any practical application) 创建(不切实际的)理论