叶(叶子) leaf; foliage:黄 (落,嫩)叶 yellow (fallen, young) leaves秋叶 autumn foliage一片枫叶 a maple leaf长叶 come (spring) into leaf树已落叶。 The tree has dropped its leaves.(像叶子的) leaf-like thing:百叶窗 shutter; blind一叶扁舟 a small boat(较长时期的分段)part of a historical period:20世纪中叶 the middle of the twentieth century; mid-20th century清朝末叶 the closing period of the Qing Dynasty(脑、 肺、 肝的叶) lobe