例句 |
It is best to coppice the trees in the winter before the sap rises.最好在冬天就修剪这些树木,不要等到树汁增多。The high concentration of sugars forms a syrup when the sap evaporates.当树汁中的水分蒸发时,糖分就浓缩成糖浆。Maple syrup is obtained from the sap of the sugar maple tree.槭糖浆是从糖槭树的树汁中提取的。The leaves, bark and sap are also common ingredients of local herbal remedies.树叶、树皮和树汁也是当地草药的常用药材。 |