Due diligence

diligence   [ˈdɪlɪdʒəns]
   
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.

Chinese whispers

Chinese whispers is a game played around the world, in which one person whispers a message to another, which is passed through a line of people until the last player announces the message to the entire group. Errors typically accumulate in the retellings, so the statement announced by the last player differs significantly, and often amusingly, from the one uttered by the first. Reasons for changes include anxiousness or impatience, erroneous corrections, the difficult-to-understand mechanism of whispering, and that some players may deliberately alter what is being said to guarantee a changed message by the end of the line.

The game is often played by children as a party game or on the playground. It is often invoked as ametaphor for cumulative error, especially the inaccuracies as rumours or gossip spread, or more generally, for the unreliability of human recollection or even oral traditions.

Arpeggio 琶音

arpeggio  琶音，一种弦乐奏法

incumbent

[ɪnˈkʌmbənt ]
adj. n. 在职的，在职者

If we place too much emphasis on whether a provider has a long established track record, this by definition will favour incumbents, and risks shutting out high quality and credible new institutions.