刀刃

dāorèn
  1. knife blade
  2. crucial point

CEDICT

  1. (figurative) crucial point; pivotal point
  2. crucial point; pivotal point
  3. edge of a knife; knife blade

Wiktionary

刀子锋利的部分。

重編國語辭典

  1. 刀口
  2. 刀子锋利的部分

維基詞典

Entry Composition

1 刀 dāo
  1. (slang) (loanword) dollar
  2. classifier for sets of one hundred sheets (of paper)
  3. classifier for knife cuts or stabs
  4. (Internet slang) to bargain; to ask for a small discount (esp. on second-hand marketplaces)

classifier: 把
2 刃 rèn edge of blade

Containing this entry

好钢用在刀刃上 hǎogāngyòngzàidāorènshàng

Related entries

关键 guānjiàn
  1. crucial point
  2. crux
  3. key
  4. crucial
  5. pivotal

classifier: 個

关键不在穿什么，而是怎么穿。

It's not what you wear, it's how you wear it.

Source: Tatoeba

闪光点 shǎnguāngdiǎn
  1. lit. flash point
  2. crucial point
  3. essential point