您要查找的是不是：
- The leaves are turning brown. 树叶变成褐色的了。
- It is autumn and the leaves are beginning to colour, ie turn brown. 秋天到了; 叶子开始变黄了.
- The leaves were already turning brown. 叶子已经变黄了。
- The leaves turn brown in autumn. 秋天树叶变黄。
- The leaves are turning color. 树叶在纷纷变色。
- The leaves are beginning to turn. 树上的叶子开始改变颜色了。
- The leaves are beginning to turn yellow. 树叶开始发黄。
- The leaves were turning yellow. 那时叶子正在变黄。
- The leaves are fragile and will fall one day. 叶子是脆弱的，终有一天会悄悄落下，
- The leaves are turning red. 树叶渐渐地变红了。
- The leaves were long and prickly. 叶子长而多刺。
- The leaves are shrivelled up by the frost. 叶子被霜打蔫了。
- Autumn has come. Tree leaves are turning yellow. 秋天到了,树叶变黄了。
- The leaves are grey and silky smooth. 叶子呈灰色，平整光洁。
- The leaves are moving in the wind and rain. 树叶在风雨中摇约。
- The leaves are blowing about in the wind. 树叶被风吹得四处都是。
- He got the urge for going when 'the meadow grass was turning brown. 他想要离开,当蓝草地变成棕色。
- The leaves are flickering gently in the breeze. 树叶在微风中轻轻地摇晃。
- The leaves are shrivelled up by the heat. 酷暑使树叶卷缩枯萎。
- The leaves are trembling in the breeze. 树叶在微风中摇动。
