under /below
1 there is a chair under the desk.
在某物下面 与物体没有接触
there are lot of minesbelow under the surface.
在什么下方 与物体接触 在。。。温度之下
it will be below 0’C tomorrow.
两者都表示在。。。什么下面，
before in front of in the front of 都表示在什么前面
before having breakfast, we need to wash our hands.
在时间的前面
in front of the classroom, there is a tree.
在。。。什么前面 在范围之外 大
in the front of the classroom, there is a teacher.
在，，，，什么前面 在范围之内 小
across/ through 穿过
the man is coming across the road.
从平面穿过
a group of people dare not go throughthe forest.
这群人不敢穿过森林。
中间穿过
after,behind /at the back of 在。。。后面
after several days the enemies came . 在。。。时间的后面 用于一般过去时
behind him, there is a pretty gril 在。。。位置的后面
A lady is siting at the back of me 在某人的后面
among , in the middle of , in the center of / between 四者都表示在。。。中间
That is my son among of a crowd of boys. 在多样事物中间
In the center of the hall stands a handsome man .在。。。（某物）中央
Between your mother and your father there is a gap. 在两者之间
you can came here between 1 and 2
There is a computer in the middle of the room .在某物中间
