sky/skaɪ/

n. the space above the earth where the sun, clouds and stars appear

n. 〖复skies/skaɪz/〗 [C,常S; U] 天；天空：[常the sky] There was not a cloud in the sky. 天空没有一片云。

◇[有形容词修饰时，用a ... sky] It's a nice afternoon with a blue sky. 下午不错，天空蓝蓝的。

音组-y/-aɪ/

by; my; shy; sky

用法表示天气时，用sky和skies意思一样，如：a cloudless sky = cloudless skies 万里无云的天空。