a pale clear light, often reflected from sth 微光(常指反光)
the gleam of moonlight on the water
水面上荡漾的月光
A few gleams of sunshine lit up the gloomy afternoon.
几线阳光使阴暗的下午亮了起来。

I saw the gleam of the knife as it flashed through the air.
我看见了刀在空中划过时的闪光。

verb
to shine with a pale clear light
The moonlight gleamed on the water.
月光照在水面上泛起粼粼波光。
Her eyes gleamed in the dark.
她的眼睛在黑暗中闪着亮光。