service rate的用法和样例：
例句
- Some experts say it could slow down service at McDonald's restaurants.
一些专家说此举可能减慢麦当劳的服务速度。 - For the regional inequalities, district authorities have to set up the target rate of services use, particularly in the remote areas, such as Hwalien Hsien and Taitung Hsien.
花莲及台东地区儿童预防保健服务率明显较其他各地偏低，应列为重点加强区域。
