n.白霜
The ground was covered with hoarfrost in the early morning. 清早地上蓋滿了白霜。
Hoarfrost occurs outdoors, usually on exposed plants near unfrozen lakes or streams. 白霜發(fā)生在室外，通常發(fā)生在未凍住的湖或小溪附近的裸露的植物上。
