修长的英文：
[Formal] slender; slim; tall and thin

参考例句：

A yacht with long,fluent curves.
一条修长而曲线流畅的游艇

A leggy model
双腿修长匀称的模特儿

a leggy dancer.
双腿修长的舞女

Bamboo grows up straight and thin, with branches at the top.
竹子长得又直又细，顶部有枝条，叶子修长。

Her green floor length dress complemented her tall lean good looks.
她那绿色拖地长裙正好和她修长的优美身材相配。

"Yes, I think so, too. He is so slim when he first joined the company. "
是,我也那样想他初进公司时是很修长的

He was long-limbed and dark-eyed, with a mop of tight, dark curls.
他四肢修长、眼睛乌黑发亮，留着一头蓬乱浓密的黑色卷发。

His was a tall, slender, well-knit figure, and Grief, studying him, estimated his character from his face
此人体态修长、匀称。格里菲打量着他，观察他的相貌，揣度他的人品。

A long,usually rounded groove incised as a decorative motif on the shaft of a column,for example.
长凹槽一种作为装饰性图案刻在柱身上的修长的、通常为环状的糟

He seems to have more length of limb than vivacity of blood or vigour of brain.
他四肢的修长似乎胜过了精力的旺盛和脑子的灵活。

formal是什么意思：
adj. 正式的；礼仪上的；有条理的；正规的；公开的 ；拘谨的

You should recast the report in formal wording as it is a formal occasion.
这是一个很郑重的场合，所以你的报告应改的正式一点。

A formal note is essentially a formal personal letter.
正式照会实质上是正式的个人函件。

They are very formal in their business transactions.
他们的商务议事很有条理。

slender是什么意思：
adj. 苗条的；细长的；微薄的

All girls want to be slender.
所有女孩都希望苗条。

The daughter was to have but a slender provision.
女儿只能得到一份菲薄的嫁妆。

It was a long slender stick of vivid yellow.
那是一根鲜黄色的又细又长的粉笔。

slim是什么意思：
adj. 苗条的；渺茫的；微薄的
v. 使体重减轻，减肥

She is trying to slim.
她正在设法减肥。

Their chance of winning are slim.
他们取胜的机会很渺茫。

Mary was slim, gamine, businesslike
玛丽身材苗条，姿色艳丽，办事有条理。