訣要

诀要
juéyào

trick; knack; know-how; secret of success; key to success

Wiktionary

Entry Composition

1 訣 jué
  1. to bid farewell
  2. tricks of the trade
  3. pithy mnemonic formula (e.g. Mao Zedong's 16-character mantra 十六字訣 on guerrilla warfare)
=2 要 yāo (bound form) to demand; to coerce
=2 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
=2 要 yǎo
  1. (archaic) alternative form of 偠 (yǎo)
  2. alternative form of 偠 (yǎo)
  3. used in 要褭／要袅