He walked tall and straight, as though he were on a forest trail.

他挺着腰板走着，好像他正走在森林小径中一样。

Taiga forests have a simple structure, and are mostly composed of tall and straight fir and pine trees.

泰加林的群落构成很简单大多是高大笔直的杉树和松树。

They often rounded shoulders, they're slouching, they're not sitting tall and straight.

他们经常圆肩, 他们弯腰驼背, 他们坐得不高也不直。

Over the years, we'd watched the pine trees in this park grow tall and straight until their needles seemed to touch the clouds.

年复一年，我们看着公园里的松树长得巍峨挺拔，直至高耸入云。

That she was tall and straight in build, that she was lady-like in her movements, was all that could be learnt of her just now.

她身材修长挺拔，举手投足处处表现出她的淑女风度，这便是眼下可从她身上看出的一切。

She had grown tall and straight and slender toward maturity since he had seen her in The Sheik's village on that long gone day.

自从他在那久远的日子里在酋长的村子里见到她以来， 她变得又高又直又苗条， 接近成熟。

This tissue is what allows modern trees to grow tall and straight, because it contains lignin, a rigid organic polymer that gives the plant structural support.

这种组织使现代树木能够长得又高又直，因为它含有木质素， 一种为植物提供结构支撑的刚性有机聚合物。

He was a splendid figure of a boy, tall and straight as a young pine tree, with a handsome head, and stormy gray eyes, deeply set under a serious brow.

他是个俊俏的少年， 高大挺拔如一棵小松树， 英俊的脑袋， 一双暴风雨般的灰色眼睛， 深陷在严肃的眉毛下。