Here are some things they have learned from scientific studies.Sunglasses are used for keeping out the sunI‘m considering studying in Beijing or Shanghai帮忙解释下Here are some things they have learned from scientific studies. 句意是：“这是他们从科学研究中获得的知识”。scientific studies科学研究Sunglasses are used for keeping out the sun太阳眼镜被用于阻挡阳光。are used for doing sth 被用于做某事。I‘m considering studying in Beijing or Shanghai我正在考虑在北京或在上海学习。 consider doing 考虑做某事