sunnier , sunniest
When it is sunny, the sun is shining brightly.
bright
The weather was surprisingly warm and sunny.
天气出奇地暖和晴朗。
Sunny places are brightly lit by the sun.
Most roses like a sunny position in a fairly fertile soil.
多数玫瑰适宜在土壤肥沃、阳光充足的地方生长。