These gases can also act as sensory irritants to produce tears or sneezing . 这些气体也可以起一种刺激物的作用,引起流泪或打喷嚏。
It is not clear whether secretory stimulants directly influence the flow of blood to mucosa . 分泌的刺激物是否直接影响胃粘膜的血流量还不清楚。
Such land tenure arrangements take away much of the economic incentive for output expansion and productivity improvement . 这种土地占有制度丧失了增加产量和提高劳动生产率的大量的经济动力刺激物。
It seems that nocturne incorporates a stimulant 看起来夜曲掺有某些刺激物
Money is still a major incentive to most people 对于大多数人来说,金钱仍是主要的刺激物