1) They be under a tree .
他们在树下。
2) They were playing chess under the tree.
他们在树下下棋。
3) They are sitting in the shade of a tree.
他们坐在树阴下。
4) They are sitting in the shade of a tree.
他们坐在树阴下乘凉。
5) They're planting trees.
他们在植树。
6) They are down stairs.
他们在楼下。
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