“吸烟致癌说”在流传了多年之后，人们才找到这一关系的证据。
It was rumored that smoking caused cancer for years before the evidence was found to prove a connection.
许多人坚持吸烟致癌的看法。
Many people hold to the theory that smoking is a cause of cancer.
标识上的标语有“吸烟要人命”、“吸烟致癌”等，还包含向公众传达吸烟的各种危害的图片。
They include phrases like "Smoking can kill you" and "Cigarettes cause cancer" and feature graphic images to convey the dangers of tobacco.
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