树叶包括以下三个部分：叶片是平展的，交叉生长，有利于接受更多的阳光,树叶也是树进行光合作用的部位。叶子可以有各种不同的形状、大小、颜色和质感。<br />如果你喜欢我的视频，欢迎订阅点赞转发留言！非常感谢.<br />If you like my video, please subscribe 🔔, like 👍, and ✍️ thank you very much.<br /><a href="https://www.youtube.com/channel/UCNw2uhTaZxVnFz_D8AUU7gg/videos" target="_blank" rel="nofollow">https://www.youtube.com/channel/UCNw2uhTaZxVnFz_D8AUU7gg/videos</a><br /><a href="https://www.youtube.com/channel/UCNw2uhTaZxVnFz_D8AUU7gg/playlists" target="_blank" rel="nofollow">https://www.youtube.com/channel/UCNw2uhTaZxVnFz_D8AUU7gg/playlists</a><br />...<br /><a href="https://www.youtube.com/watch?v=8jkP-Ael-CE" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=8jkP-Ael-CE</a>