The river is about 100 metres deep. 这条河大约有100米深.
The mountain is nearly 4, 000 kilometres high.
这座山有近4000米高.
Our classroom is ten metres long and seven metres wide.
我们的教室十米长,七米宽.
This box is 2 kilograms in weight．
这个盒子有两千克重.
The city wall of Xi'an is 12 meters wide and 12 meters high．
西安城墙是12米宽,12米高.
The Changjiang River is 6,300 kilometres long.
长江有6300千米长
he is one huderd eighteen centimeters tall.他有一米八高
this river is 6 meters deep.这河有六米深.
that mountain is 1000 meters tall.那山有一千米高