sensitivity of micro-phone

例句：

1. 1. The new softwarehas improved the device's sensitivity.
   新软件提高了设备的灵敏度。
2. 2. The scientist was verysensitive to changes in the environment.
   这位科学家对环境变化非常敏感。
3. 3. Thenew model car has ahigher sensitivity than its predecessor.
   这款新型汽车的灵敏度比前一代更高。