It's believed the affair was potentially harmful to British aviation.据信该事件可能对英国航空业造成不利影响。The individual colours within the light spectrum are believed to have an effect on health.光谱中不同的颜色被认为对健康有不同的影响。Nearly all of t...
This was a matter less of morals than of expediency.此举只是权宜之计，不关乎道德问题。The government is torn between principle and expediency.政府在原则与权宜之间难于抉择。There will always be tensions between principle and expediency.原则和权宜之计之间总是矛盾重重.I...