挺的英文：
be straight and stiff
rather

参考例句：

This dance step is quite complicated.
这个舞步挺复杂的。

He is certainly no slouch in the kitchen.
他在厨房干活挺麻利。

My study looks spruce.
我的书房看起来挺漂亮。

They threw their chests out when marching in parade.
他们在列队行进时都挺起了胸膛。

Schryhart straightened up determinedly and offensively
希哈利坚决地、无礼地挺起了身子。

For many a true computer geek, moving through meatspace is a daunting prospect.
对很多真正的电脑迷来说，在现实世界活动是个挺可怕的想法。

The scrawny kitten lingered, brushing itself against our legs, and meowing plaintively
这只瘦得皮包骨的小猫赖着不走，在我们的脚边蹭来蹭去，叫得挺凄凉的。

I was surprisedto see him at the jazz club;I always thought of him as a rather staid old gentleman.
我在爵士舞俱乐部见到他时很感意外，我还一直以为他是个挺古板的绅士呢。

Quite genuinely, you know, the debonair touch
你知道，笑得还挺真诚，挺欢快。

His fees were quite reasonable.
他的收费还挺合理。

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

stiff是什么意思：
adj. 坚硬的；僵硬的；呆板的；拘谨的；生硬的；强劲的，猛烈的；严厉的；艰难的adv. 彻底地，极度地
n. 死尸；笨蛋；令人讨厌者；劳动者；吝啬鬼；流通票据
v. 诈骗；亏待侍者

stiff resistance
强有力的抵抗

That was a stiff climb.
那是一次艰苦的攀登。

You really are a stiff.
你真的是一个笨蛋。

rather是什么意思：
adv. 相当，宁愿，有点儿
int. 好呀

Emma was rather plain, rather old, and condescending
爱玛长得相当平常，年纪也较大，而且还摆出点屈尊俯就的样子。

,” but rather “Open Report…”
，而应该说“打开报告…”。

Be honest rather clever
诚实比聪明更要紧