端正的英文：
upright
regular
proper
correct

参考例句：

Well-shaped figure and decorous appearance
品貌端正

She is poor but quite respectable.
她虽穷，人品却很端正。

Henry is a person of strict morality.
亨利是个品行极其端正的人。

Would you describe that lady as beautiful or handsome?
你看那位妇女是漂亮还是端正？

He had a very good countenance, not a fierce and surly aspect
他的五官生得很端正，没有那种狰狞可憎的样子。

On Miss T'ang's charming, well-proportioned, round face were two shallow dimples
唐小姐妩媚端正的圆脸，有两个浅酒涡。

He told the children to sit up and not slouch.
他叫孩子们坐端正，不要弯腰曲背。

The young girl had regular and delicate lineament.
这个年轻姑娘的容貌长得端正而且秀丽。

For a son is born to the king—a child faultless in form and beautiful in face and limb
国王得了一个儿子——一个仪表端正、面貌清秀、四肢健美的孩子。

All were at least comely, and one of them very handsome and regular of feature.
她们至少都长得不难看，其中有一个容貌很端正，很漂亮。

upright是什么意思：
n. 直柱
adj. 笔直的；正直的
adv. 垂直（竖立）地

upright steamer
立式蒸锅

He was upright, hearty, and robust.
他身材笔直，精神饱满，体魄壮。

The piano was nearly always an upright.
钢琴差不多总是直立式的。

regular是什么意思：
adj. 定期的；有规律的；频繁的；平常的；规则的，整齐的；中份的；常规的
n. 常客；正式成员

Please regular the sound on that recorder.
请调节录音机的音量。

They run regular services.
它们提供有规律的服务。

Not regular or fixed;occasional
不规则的；非固定的；临时的

proper是什么意思：
adj. 适合的；正当的；固有的；严格意义上的

Cheat's never proper.
欺骗决非正当事。

Action is the proper fruit of knowledge
行动是知识的巧果

They were in proper tennis whites.
他们都穿着可体的白色网球服。