n. a neutral achromatic color midway between white and black
n. the SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad
n. English radiobiologist in whose honor the gray (the SI unit of energy for the absorbed dose of radiation) was named (1905-1965)
n. English poet best known for his elegy written in a country churchyard (1716-1771)
n. 灰色, 暗淡
a. 灰色的, 灰白的, 面色苍白的, 年老的, 老练的, 阴沉的
v. (使)变灰色
1. The sky is gray today, and it looks like it might rain.
今天的天空是灰色的，看起来可能要下雨。
2. She wore a beautiful gray dress to the party.
她穿了一件漂亮的灰色连衣裙去参加聚会。
3. The cat has gray fur and bright green eyes.
这只猫有灰色的毛和明亮的绿色眼睛。