n.勤勉,勤奋;
例句
1.
The police are pursuing their inquiries with great diligence.
警方正不知疲倦地进行调查。
2.
He exhorted his companions, "Try to accomplish your aim with diligence".
他劝诫同伴说:“要通过勤奋努力实现自己的目标。”
3.
She shows great diligence in her schoolwork.
她上学非常用功
Due diligence 尽职调查 is an investigation of a business or person prior to signing a contract, or an act with a certain standard of care.
It can be a legal obligation, but the term will more commonly apply to voluntary investigations. A common example of due diligence in various industries is the process through which a potential acquirer evaluates a target company or its assets for an acquisition.