单枪匹马

單槍匹馬
dānqiāngpǐmǎ
  1. lit. single spear and horse (idiom)
  2. fig. single-handed; unaccompanied

CEDICT

single-handed; unassisted

Wiktionary

单独行动，没有丝毫助力

維基詞典

Entry Composition

1 单 dān
  1. bill
  2. list
  3. form
  4. single
  5. only
  6. sole
  7. odd number

classifier: 個
=2 枪 qiāng
  1. gun
  2. firearm
  3. rifle
  4. spear
  5. thing with shape or function similar to a gun
  6. to substitute for another person in a test
  7. to knock
  8. classifier for rifle shots

classifiers: 支, 把, 桿, 條, 枝
=2 枪 qiāng
  1. variant of 枪 qiāng
  2. rifle
  3. spear
3 匹马 pǐmǎ
  1. (archaic, figuratively) alone; by oneself
  2. alone; by oneself