挺拔的英文：
tall and straight

参考例句：

What softness and furry thickness of the tall pines about the shore!
两岸挺拔的松树多么柔和，多么浓密！

The estate was fringed with stately elms.
那片地以挺拔的榆树为边界。

He seemed to see the fat kentish fields with their stately elms.
他仿佛看见了那肥沃的长着挺拔榆树的肯特郡的田野。

I eulogize the tall and straight trunk of the white poplar.
我赞美白杨树那挺拔的株干。

She was slender as a willow shoot is slender—and equally graceful,equally erect(Frank Norris)
她象柳枝一样的苗条——一样的优美，一样的挺拔(弗兰克·诺里斯)

tall是什么意思：
adj. 高的；过分的；夸张的
adv. 夸张地

How to top a tall tree?
如何给大树截顶？

She was tall, blonde, and attractive.
她个子高挑，金发碧眼，非常迷人。

They indulge in tall talk.
他们一味说大话。

She stood tall and aloof.
她人很高，很冷漠。

Tall,thin,and ungainly.
瘦高且笨拙的

straight是什么意思：
adj. 直的；正直的；直率的；连续的；整齐的
adv. 直接地；坦率地；立即；不断地
n. 直线

straight or on the rock
纯的或加冰块

make(sth)straight or level
使（某物）变直或变平

Straight trees have crooked roots
直树也有曲根

You cannot be lost on a straight road
走直路,不迷途

These trees are noted for their straightness and hardness.
这些树的特点是树干挺直，木质坚硬。