飞机在约5500米的高度飞行。

The aircraft was flying at a ___height of about 5500 metres.

这座山位于海拔5600米的高度。

The mountain is situated at a ___height of 5,600 metres.

她的桌子可以调节，所以她能改变它的高度。

Her desk is adjustable, so she can change its ___height.