indefinite造句

He was transferred to Shoal Creek Mental Institution for an indefinite period.
他被转到了肖尔溪精神病院,要在那里无限期地呆下去。

The store will be closed for an indefinite period.
这家商店将无限期关闭.

The structure has an indefinite life.
这是一座永久性的建筑物.