Usage note
“适当”的意思是合适、恰当,通常用来形容行为、数量或程度刚刚好。
“Shìdàng” de yìsi shì héshì, qiàdàng, tōngcháng yòng lái xíngróng xíngwéi, shùliàng huò chéngdù gāng gāng hǎo.
“Appropriate” means suitable or proper, usually used to describe behavior, quantity, or degree that is just right.