His eyes were a watery blue.

他的眼睛是淡蓝色的。

《牛津词典》

My student tried hard to get the thick furred look of the blue area, but all he could manage was a flaccid, watery pool of blue.

我的学生花了很多力气想弄出蓝色色块上厚实茂密的表面，但是他的努力只得到一片松软散淡的蓝色。

youdao

Dudley looked a lot like Uncle Vernon. He had a large pink face, not much neck, small, watery blue eyes, and thick blond hair that lay smoothly on his thick, fat head.

达力更像弗农姨父：一张粉红色的银盆大脸，脖子很短，一对水汪汪的蓝眼睛，浓密的金发平整地贴在他那厚实的胖乎乎的脑袋上。

youdao

Fortunately as far as I could see, no one was washed away then, but later on it was quite apparent in the aftermath that there were so many others washed away to a watery grave in the deep blue sea.

CNN: Tsunami tragedy: Your e-mails

His pale-blue eyes looked watery from exhaustion, the skin of his nose polished as if by a sunburn.

NEWYORKER: The Repatriates