borderline water level的用法和样例：
例句
- Energy experts predict that within days the water will reach the critical level, and the whole country could shut down.
能源专家预测，过不了几天蓄水量将降至临界水位，届时整个国家可能就要瘫痪了。 - In addition, the significance of the disaster causal critical water table to preventing land subsidence disaster and exploiting groundwater resource reasonably is also analyzed.
分析了地面沉降成灾临界水位对预防地面沉降灾害发生及合理开采地下水资源的重要意义。
