frost
/frɔst/
ice crystals forming a white deposit (especially on objects outside)
中文释义：霜；严寒
The morning frost covered the grass like a white blanket.
早晨的霜像白色的毯子一样覆盖着草地。
Farmers worry about frost damaging their crops in early spring.
农民担心早春的霜冻会损害他们的庄稼。