A notion in economics known as the paradox of value is closely tied to consumers'surplus.

The skin eruption is of value in suggesting the diagnosis.

皮肤疹对揭示诊断是有价值的.

Current sales figures tell us something of value about what is really going on.

最近的销售数据能够告诉我们一些有关真实行情的重要信息。

An economic transaction is an exchange of value.

一项经济交易就是一次价值交换.

We consider this invention as of vital importance.

我们认为这一建议缺乏实用价值.

This matter is of vital importance to us.

这件事对我们来说至关重要.

Simple keyboard shortcuts and mouseless operation will be of vital importance.

它应该具有简单的键盘快捷键并能脱离鼠标操作.

For Citi, the case is of vital importance.

对于花旗而言, 此案事关重大.

Internal pressure with a liquid-filled projectile is of vital importance in its reliability design.

装液弹弹内压力对弹的安全可靠性极其重要.

The question put forward at the meeting is of vital importance.

会上提出的那些问题极其重要.

This is of vital importance.

这是至关重要的.

Therefore, it is of vital importance to improve appraisal system.

可见, 完善我国公务员绩效考核体系十分重要.

Methodology of diplomatic investigation and study is of vital importance.

外交调研的方法论至关重要.

This is of vital importance to the sustainable development of APEC members.

这对各成员的持续发展至关重要.

She has an off and on pain in the stomach.

她的胃疼好一阵,坏一阵.

He has been writing to us off and on for several years.

他断断续续地给我们写信已经有好几年了.

We lived together, off and on, for two years.

我们断断续续在一起生活了两年。

It rained off and on all day.

断断续续下了一天雨.

It was blowing and raining hard, off and on.

室外大风劲吹,大雨倾盆, 时断时续.

He only accepted the primary education off and on in his childhood.

他小时候只断断续续地接受过初等教育.

Perhaps secondhand cares, like second-hand clothes, come easily off and on.

或许二等角色的责任, 正如二道手的衣服一样, 穿上脱下都比较随便吧.