因为它是重读闭音节，要双写n再加y.
adj. 阳光充足的，和煦的快活的性情开朗的
It's a brilliantly sunny morning.
这是个阳光灿烂的早晨。
It was brilliantly sunny.
阳光明媚。
It's bound to be sunny again tomorrow.
明天肯定又是阳光灿烂。
The weather was surprisingly warm and sunny.
天气出奇地暖和晴朗。
The outlook for the weekend is hot and sunny.
预计本周末将为晴热天气。
