adj.晴朗的，无云的

The sky was cloudless, a vast expanse of blue.
天空万里无云，是一片广阔的蓝色。
On a cloudless night, the stars shone brightly.
在一个无云的夜晚，星星明亮地闪烁着。
The cloudless weather persisted for weeks.
无云的天气持续了好几个星期。
We had a cloudless day for our picnic in the park.
我们在公园野餐时，天气晴朗无云。
The cloudless horizon made for stunning sunset views.
无云的地平线造就了令人惊叹的日落景象。
The cloudless sky was a perfect backdrop for the fireworks display.
无云的天空是烟花表演的完美背景。
The cloudless morning was a relief after days of rain.
经过几天的雨后，无云的早晨让人感到轻松。
The cloudless skies were a stark contrast to the stormy weather yesterday.
今天无云的天空与昨天的暴风雨天气形成了鲜明对比。
The cloudless atmosphere allowed for clear visibility during the flight.
无云的大气使得飞行期间视线清晰。
The cloudless conditions were ideal for observing the solar eclipse.
无云的条件非常适合观察日食。