Trying to helpinjured, displaced or sick creatures can be heartbreaking; survival is never certain.
试图帮助受伤的、流离失所或生病的动物可能会令人心碎;因为不确定它们能否存活下来。
2017全国卷1
These chemicals come from theinjured parts of the plant and seem to be an alarm.
这些化学物质来自植物的受伤部位, 似乎是一种警报。
2017全国卷2