例句與造句

1. At low water levels the lake can be a dull grey colour, changing to an intensely sky blue colour at higher lake levels, in particular after the overflow stage.
2. The water temperature in the lake ranges from, with acidity up to pH 2.2, and lake levels that vary up to, following a complicated 38-day cycle that includes an overflow stage.
3. It's difficult to find overflow stage in a sentence. 用overflow stage造句挺難的