The new office block has become an expensive white elephant.

这座新办公大楼成了昂贵的摆设。

A new office block was built to accommodate the overflow of staff.

新建了一座办公大楼以便容纳多出的员工。

A: That is our office block.

那是我们的办公大楼。

And that is our office block.

那就是我们的办公大楼。

The office block is under offer.

办公大楼已有人出价购买。