Rede de palavras: cracking

Planos Frustrados: Como usar 'Fall through'

prepositions

C1

Dominando Verbos Irregulares: Além do -ed (Particípios Passados)

verbs_tenses

B1

Adjetivos: -ed vs. -ing (Sentimento vs. Causa)

adjectives_adverbs

B2

Orações Relativas Restritivas vs. Explicativas (Vírgulas e Significado)

relative_clauses

B2

uma noz difícil de quebrar

A difficult problem or person to deal with

B2

osso duro de roer (lit. hard bone to gnaw)

A difficult problem or a person who is difficult to deal with.

um osso duro de roer

A problem or person that is very difficult to deal with or understand.

pés de barro

a hidden weakness or flaw in someone's character or in something that seems strong

crack a joke

Make people laugh

A2

resolver quebra-cabeça

Complete a mental game

B1