sustained note的意思|示意

It is a light in the face, an air of exclusive welcome, an almost impossibly sustained note of satisfaction in one's company, and regret without fuss at parting.

它是满面的红光、是种热情欢迎的姿态、是超乎想象长久相伴的满足、是毫无遗憾的安然的分离。

'we typically get at least one month of job gains followed by renewed declines before a sustained increase in employment is achieved,' they write in a research note.

他们在研究报告中指出，一般来说，在就业数据持续增长之前，至少会出现一个月增长之后又再次下滑的情况。

You note in the book that sustained unemployment is a particular threat to wellbeing.

你在书中提到持续的失业是对健康最大的威胁。