VERBS | ADVERB | PREPOSITIONVERBS➤be, seem正當;似乎正當▸➤become變得正當▸➤consider sth, think sth認為⋯正當◇We consider this action justifiable.我們認為這一行動是正當的。ADVERB➤completely, entirely, perfectly完全正當▸➤commercially, economically有正當商業理由的;有正當經濟理由的▸➤ethically, morally合乎倫理/道德PREPOSITION➤on the grounds of sth, on the grounds that..., on... grounds在⋯方面合理◇The cutbacks are justifiable on the grounds of cost.這些削減符合成本方面的考慮。◇The rule is justifiable on safety grounds.從安全方面考慮,這條規定是合理的。