Maple trees in low, wet areas produce more sap than trees growing in higher and drier parts, but the sap contains less sugar.
地势较低潮湿地区的枫树要比地势较高干燥地区的枫树产出更多的树液，但是含糖量会减少。
Maple trees in low, wet areas produce more sap than trees growing in higher and drier parts, but the sap contains less sugar.
地势较低潮湿地区的枫树要比地势较高干燥地区的枫树产出更多的树液，但是含糖量会减少。
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