concoct

Compared meaning: to secretly plan or invent something (verb).

比较义项：秘密地策划或编造某事（动词）。

• hatch

  Hatch typically takes plan-like objects (a plot, scheme, plan) and highlights secretly devising a course of action; the plan itself need not be false, just kept hidden.

  hatch 通常与计划类名词（plot、scheme、plan）搭配，强调秘密酝酿出一个行动方案；这个方案本身不一定是虚假的，只是被隐瞒着。

  The two brothers hatched a secret plan to surprise their parents for their anniversary.

  兄弟俩秘密策划了一个计划，要在结婚纪念日给父母一个惊喜。

• concoct 本词

  Concoct typically takes story-like objects (a story, excuse, lie) and stresses fabricating something untrue, often to deceive or cover something up.

  concoct 通常与故事类名词（story、excuse、lie）搭配，强调编造出并不真实的内容，往往是为了欺骗或掩盖真相。

  He tried to concoct a believable excuse for arriving three hours late.

  他试图编造一个可信的借口，来解释自己为什么迟到了三个小时。

Hatch and concoct both mean to secretly plan something. Hatch takes plan-like words, like a plot or scheme, for secretly devising an action. Concoct takes story-like words, like a story or excuse, for inventing something untrue to deceive. Hatch's egg sense is not compared here.

hatch 强调悄悄谋划出一个计划或阴谋，重点在“秘密酝酿”，这个计划本身不一定是虚假的；concoct 强调编造一个并不真实的故事或借口，本身就带有“弄虚作假”的意味，常与 story、excuse、lie 搭配。这里不比较 hatch 表示（蛋）“孵化”的字面意思。