They've set aside a small area as a children's playground and staked it off.

划出一小块地皮用于建造儿童游乐场, 并在周围打上了木桩。

They measured off a half-acre plot for a house lot.

划出一块半英亩的地皮来作房屋地基。

The office buildings were slightly zigzagged to fit available ground space.

公大楼为了配合可用的地皮建造得略呈之字形。