*sky/skaɪ; skaɪ/ n [singular 单数,U] 1 the space above the earth where the sun, clouds, and stars are 天,天空: a clear blue sky 晴朗的蓝天 2 the sky's the limitspoken used to say that there is no limit to what someone can achieve, spend etc 【口】 〔成就等〕无可限量; 〔花费等〕没有任何限制 → see also 另见 SKIES