sin,罪，罪行，-ful,形容词后缀。引申词义不道德的，邪恶的。

1. "I am a sinful man," he said.

“我是个邪恶的人，”他说。

2. He reminded us that smoking was sinful.

他提醒我们吸烟是不道德的。

3. It is sinful to lie.

说谎是不道德的。

4. Good women have always saved sinful men in story.

故事中,向来都是善良的女人挽救了作恶的男人.

5. Religious dogmas often include strong sexual taboos and can create in children the impression that sex is sinful.

宗教教义中经常包含严格的性禁忌，这会给儿童留下“性是罪恶”的印象。