在正式场合,选择恰当的表达方式非常重要。Zài zhèngshì chǎnghé, xuǎnzé qiàdàng de biǎodá fāngshì fēicháng zhòngyào.In formal settings, choosing an appropriate way of expressing oneself is very important.
他用恰当的比喻解释了这个难题。Tā yòng qiàdàng de bǐyù jiěshì le zhège nántí.He explained this difficult problem with an apt comparison.
在老师面前这样说话不太恰当。Zài lǎoshī miànqián zhèyàng shuōhuà bú tài qiàdàng.It is not very appropriate to speak like this in front of the teacher.