碧空如洗。

The sky was a limpid blue, as if swept clean of everything.

碧空如洗，万里无云。

Up above the sky was blue and cloudless.

可我2月份还去了旧金山，当时那里的气温为21摄氏度，碧空如洗。

However, last month I also visited San Francisco, where it was 21C, with clear blue skies.

即使被凝固在冷冰冰的石膏中，（荷马）那双失明的眼睛仍然在探寻，只为了他所至爱的明媚阳光、碧空如洗的希腊，然而寻找是徒劳的。

those sightless eyes seeking, even in the cold plaster, for the light and the blue skies of his beloved Hellas, but seeking in vain;