belly of bow

例句：

1. 1. The bowstring is stretched taut over the bow.
   弓弦紧绷地穿过弓。
2. 2. The archer aimed at the target with his bow.
   射手用弓瞄准目标。
3. 3. The bow and arrow were used for hunting in ancient times.
   古代用弓和箭狩猎。