B1#tintin#dig deep#hardy#fetch#artwork#mysteriousRare Tintin artwork may fetch over $2.4 million00林宜悉 posted on 2021/01/14More optionsShareSaveReportVideo vocabularyNo vocabulary matches your filtersmysteriousUS /mɪˈstɪriəs/・UK /mɪˈstɪəriəs/AdjectiveUnusual; hard to understand or work outA2More dutyUS /ˈduti, ˈdju-/・UK /'dju:tɪ/Noun (Countable/Uncountable)Work required by your job or positionA tax (on imported goods)A2TOEICMore deepUS /dip/・UK /di:p/AdjectiveComplex and importantExtreme or intenseA1More hardyUS /ˈhɑrdi/・UK /'hɑ:dɪ/AdjectiveAble to survive cold weather, hard timesBold; brave.Proper NounA surname.B2More Use EnergyUnlock All VocabularyUnlock pronunciation, explanations, and filtersUnlock