They are tearing down the old building in order to build a new one.

为了建新房子，他们正在拆掉老楼。

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They are tearing down these old houses to build a new office building.

他们正在拆除这些旧房子以便建一座新办公楼。

youdao

They are tearing down these old houses to build a new office building.

他们正在拆除这些旧房子以便建一座新办公楼。

youdao