重点讲解：
1. up to
高达；多达；
eg. Organisers expect up to 300,000 protesters to join the march.
组织者们预计会有多达30万名的抗议者参加这次游行。
eg. In its natural habitat, the hibiscus will grow up to 25ft.
在原生境中，木槿能长到25英尺高。
2. such as
用于举例）例如，像，诸如；
eg. Avoid unhealthy foods such as hamburger and chips.
不要吃不健康食品，如汉堡和薯条。
eg. It protects against environmental hazards such as wind and sun.
它可以保护免受风、太阳等环境因素的危害。
3. in turn
继而；转而；反过来；
eg. Theory is based on practice and in turn serves practice.
理论的基础是实践，反过来理论又为实践服务。
eg. The Indians, in turn, were charmed by the famous author's cultured and civilised outlook.
而印第安人呢，则为那位著名作家有教养的、开化的见解而折服。
4. soak up
吸收；
eg. The cells will promptly start to soak up moisture.
细胞会立即开始吸收水分。
eg. If you air your quilt on such a wet day, it'll soak up the moisture.
如果在这么潮湿的天晒被子，被子就会把湿气都吸去。