Definition: A solitary person or thing is the only person or thing in a place. Level: C2
海滩上那位孤独的步行者陷入了沉思。
The ___solitary walker on the beach was lost in thought.
没有部队，这位将军只是战场上一个孤零零的士兵。
Without his troops, the general was just a ___solitary soldier on the battlefield.
那座孤零零的灯塔守卫着空荡的海湾。
The ___solitary lighthouse stood guard over the empty bay.
