lifting stem

例句：

1. 1. The plant's liftingstem is visible through the leaves.
   植物的茎部通过叶子可见。
2. 2. The scientistused a microscope to observethe tiny lifting stems ofbacteria.
   科学家使用显微镜观察细菌的微小提举部分。
3. 3. The tree's liftingstem is strong enough to support its weight.
   这棵树的提举部分足够强壮以支撑其重量。