最佳答案
They found a labyrinth of tunnels under the ground.
他们发现了地下一处迷宫似的地道。
A path runs under the trees.
一条小路在树下延伸。
She held her breath for three minutes under the water.
她在水下屏息了3分钟。
He took a deep breath before he went under.
他在钻下水前深深地吸了口气。
He went under a brick arch.
他从一座砖拱门下面走过。