Better working conditions. One of its first demands was an eight-hour work day.

VOA: special.2010.05.06

The purpose here is to look at a series of processes in which temperature is held constant, and we're going to calculate how much work we get from allowing a gas to expand under various conditions.

目的是让大家了解一下,几个保持温度不变的过程，然后我们将计算,气体在不同膨胀过程中,的对外做功。

麻省理工公开课 - 热力学与动力学课程节选

She had proved that women could work in terrible conditions.

VOA: special.2009.07.26

It was extremely hard work under very difficult conditions.

VOA: special.2009.02.11

They have lots of temporary work and difficult conditions.

VOA: special.2009.06.08

On the implications of the U.S.military drawdown for United Nation's operations, Melkert said his staff work and live under challenging conditions.

VOA: standard.2010.08.04