Inviting the fire-brigade to put out a fire is a crude form of deception which no self-respecting student would ever indulge in.

请火警来扑灭一场不存在的火灾是一种低级的骗局，有自尊心的大学生决不沉湎于此。

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Inviting the fire brigade to put out a nonexistent fire is a crude form of deception which no self-respecting student would ever indulge in.

请消防队来扑灭一场根本没有的大火是一种低级骗局，有自尊心的大学生决不会去做。

youdao

Inviting the fire-brigade to put out a non - existent fire is a crude form of deception which no self-respecting student would ever indulge in.

火警来扑灭一场不存在的火灾是一种低级的骗局，有自尊心的大学生决不沉湎于此。

youdao

Thomas Pittman, a retired professor at the University of Southern Mississippi and an expert in toxicology, said ricin has a number of qualities that make it desirable to someone bent on doing harm: The ingredients are relatively easy to obtain, it's not that hard to make a crude form of it, it's deadly and it's hard to detect in a victim's body.

NPR: 'The Perfect Poison': Ricin Used In 3 Recent Cases

For most of 60 years men with advanced cases have had a dearth of treatments other than crude hormone therapy adopted in the 1940s, which essentially was a form of chemical castration.

FORBES: Men, Cancer, & Hope

The police force four years ago had a crude 'simulator' in the form of a wooden maze which was barely transportable.

BBC: News | Education | Pupils become virtual crime fighters