1. Scientists use genetic engineering to develop pest-resistant crops.
科学家使用基因工程技术培育抗虫作物。
2. Genetic engineering can help treat genetic diseases.
基因工程可以帮助治疗遗传性疾病。
3. This technology plays an important role in medical research.
这项技术在医学研究中发挥着重要作用。
4. Genetic engineering may raise ethical issues.
基因工程可能会带来伦理问题。
5. The applications of genetic engineering are very broad.
基因工程的应用范围非常广泛。