penjing planted with old dwarf trees

例句：

1. 1. The old dwarf trees are planted in the garden.
   那些老矮树被种在花园里。
2. 2. The penjing plants add a touch of greenery to the landscape.
   这些小树给景观增添了一抹绿色。
3. 3. The children were playing under the tall trees when it started raining.
   当开始下雨时，孩子们正在高高的树上玩耍。