I crept closer in the swamp, among the cypress knees, and shot with my .22 rifle.
我在沼泽中爬得更近一些, 在柏树膝间, 用我的 . 22 步枪射击。
十字小溪(下)
We must wade knee-deep to gather the flowers, going cautiously through the leaf-brown water for fear of roots or sharp cypress knees or moccasins.
我们必须趟过齐膝的水去采花, 小心翼翼地穿过叶褐色的水, 以免有树根、锋利的柏树膝盖或鹿皮鞋。
英语百科
Cypress knee
A cypress knee is a distinctive structure forming above the roots of a cypress tree of any of various species of the subfamily Taxodioideae. Their function is unknown, but they are generally seen on trees growing in swamps. Some scientists have thought they may help in oxygenation to the tree's roots or assist in anchoring the tree in the soft, muddy soil.