茎

例句：

1. 1. The plant grows taller with the seasons.
   随着季节的变化，植物长得越来越高。
2. 2. The tree's trunk is thick and sturdy.
   这棵树的树干又粗又结实。
3. 3. The vine wraps around the wall like a snake.
   藤蔓像蛇一样缠绕在墙上。