oughton Basic wordsalso onBand 2 (BND2)? Band 3 (BND3)? 应当,应该 ought ought(verb) 应当,应该 oughtn't oughtn't(abbreviation) 不应该(ought not的缩写) oughtn't oughtn't(verb) 不应该 Forms verbabbreviation ought oughtn't oughtn't