at once; right away; immediately; on horseback (i.e. by military force
马 (Mǎ) · 3 strokes
Simplified form of 馬. Pictograph of a horse.
上 (shǎng) · 3 strokes
Originally a small line or dot above a longer line, indicating "up". The vertical line was added to distinguish the character from 二 (two). Opposite of 下.