prence
美
英 
例句
For unknown reasons, the prence of hypertension seems to be decreasing in the USA.
目前,美国高血压患病率似在降低,原因尚不清楚。
The prence of tobacco in the world of 200 years, until the 20th century, mankind began to recognize that tobacco harm to humans.
烟草在全球盛行了两百多年,直到20世纪,人类才开始认识到烟草对人类的危害。
The quick pace of modern life is to blame for the prence of mental problems.
现代生活的快节奏导致了心理问题的普遍存在。
The reasons for the prence of the adversary system are manifold.
为对抗制的普遍现象的原因是多方面的。