叶柄

The plant has long petioles supporting large, round leaves.
这种植物有长叶柄支撑着大而圆的叶子。
The petiole of the maple leaf turns red in autumn.
枫叶的叶柄在秋天会变红。
The insect was crawling along the petiole of the flower.
昆虫正沿着花的叶柄爬行。
The petioles of these ferns are used in traditional medicine.
这些蕨类植物的叶柄被用于传统医学中。
The weight of the fruit causes the tree's branches to bend, almost touching the ground with their petioles.
水果的重量使树枝弯曲，几乎让叶柄触到了地面。
The petiole serves as a conduit for water and nutrients from the stem to the leaf.
叶柄作为水分和养分从茎传输到叶子的通道。
Some species of plants have hollow petioles that can float, aiding in seed dispersal by water.
有些植物种类的叶柄是空心的，能漂浮，有助于种子通过水传播。
The petiole of this plant is armed with small thorns for protection against herbivores.
这种植物的叶柄上装备有小刺，以防御草食动物。
The length of the petiole varies greatly among different types of plants, from almost nonexistent to several feet long.
不同类型的植物，其叶柄长度差异很大，从几乎不存在到几英尺长不等。
In culinary usage, the petioles of rhubarb are commonly eaten, while the leaves are toxic.
在烹饪中，大黄的叶柄常被食用，而叶子是有毒的。