1) They are down stairs.
他们在楼下。
2) They be under a tree .
他们在树下。
3) Are the children downstairs?
孩子们在楼下吗?
4) They were playing chess under the tree.
他们在树下下棋。
5) They swam underwater.
他们在水下潜泳。
6) They are sitting in the shade of a tree.
他们坐在树阴下。
补充资料：他们
1.代词。称自己和对方以外的若干人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条