-卢广
1、作。。。（辅助线）
Draw..
Connect….
Join
2、Drop (作垂线)
3、作A到BC的垂线，交BC于D
. Drop perpendicular from A to BC, meeting BC at D
4、连结B和AC的中点
Join B to the midpoint of AC
Or
Connect B with the midpoint of AC
5、 作直线平行于AB交CD于F
Draw a line parallel to AB meeting CD at F
6、以O为圆心，r为半径作圆
Draw circle with centre O and radius r
7、延长AB到点E
We extend AB to the point E
8、已知
We are told that….;Given, Let
9、如图所示
In the diagram; As shown in the diagram
10、假设：
Suppose
Assume
Let
11、设.. 为…
Let.. be
12、因为..
As,..
Since…
13、所以,
then… Therefore thus…So,.. Hence,..
14、因为直线a 和b平行，所以∠1=∠2.
since line a and b are parallel, then ∠1=∠2.
15、而且
Also,..
Moreover,…
16、可以证实….
We can verify that..
17、可以得知。。
We obtain….
We can get,…
From this we can conclude that…
18、同理
Similarly
19、A…的值是…B
The value of A is B
20、A与B的比为P
The fraction/ratio of A and B is P
21、D的和为…
The sum of ..
22、D的差为….
The difference of D is
23、D的积为..
The product of D is ….
24、D的商为….
The quotient of D is….
25、D和E的平均值为。。。
The average of D and E. is…
26、A是BC的中点
A is the midpoint of BC
27、记线段AB的中点为O
Label the midpoint of the segment AB as point O
28、A、B两点之间的最长（最短）距离为。。。
The maximum(minimum) distance of the two point A、B is..
29、面积是…
The area is…
30、阴影部分面积..
The shaded area is…
31、所求部分面积
The area of desired region is..
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-东南亚风格特点
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