c打头的形容词褒义

considerate 体贴的，constructive 建设性的，contemplative 好沉思的，cooperative 有合作精神的，careful 小心翼翼的，clean 干净的，calm 镇静的，capable 有能力的，captive 被俘虏的，careful 小心的，casual 偶然的

She is always polite and considerate towards her employees.

她对待雇员总是客客气气，关心体谅。

It was very considerate of him to wait.

他一直在等候着，真是体贴人。

She believes these talks will be the start of a constructive and meaningful dialogue

她认为这些谈话将是一次具有建设性的、有意义的.对话的开端。

His work involved helping hyperactive children to use their energy in a constructive way.

他的工作包括帮助患有多动症的儿童建设性地利用他们的精力。