gross evaporation的用法和樣例：
例句
- There is generally more evaporation over the oceans and more precipitation over the land.
通常在海洋蒸發(fā)量較大，而陸地上則降水量較大。 - Normally, in tropical regions where the sun is very strong, the ocean salinity is higher than it is in other parts of the world where there is not as much evaporation.
通常熱帶地區陽(yáng)光強烈，而其他地區海水蒸發(fā)量不如熱帶地區那么大，因此這些地區海水咸度要高些。
