Correct

下马

/ xiàmǎ / 
Strokes

Definition

to dismount from a horse/(fig.) to abandon (a project)

Example

As a Verb

get off a horse; dismount from a horse

1
Wénwǔ
文武
guānyuán
官员
zhìcǐ
至此
xiàmǎ
下马
  
。

Civil and military officials should dismount here.

2
Jūnguān
军官
mìnglìng
命令
bùduì
部队
xiàmǎ
下马
  
。

The officer ordered the troops to dismount.

3
Tiàoxià
跳下
mǎ
马

jump off the horse

4
Gǔn
滚
ān
鞍
xiàmǎ
下马

slip out of the saddle; alight from one's horse

5
Xiàmǎ
下马
tóuxiáng
投降

get off the horse and surrender

As a Verb

discontinue/abort (usu a plan or a project under progress); call off

6
Gāi
该
xiàngmù
项目
bèipò
被迫
xiàmǎ
下马
  
。

The project had to be aborted.

7
Jìhuà
计划
xiàmǎ
下马

abandon a plan

8
Gōngchéng
工程
xiàmǎ
下马

discontinue a project