upright

adj. 正直的，诚实的；垂直的，直立的；笔直的；合乎正道的

n. 垂直；竖立

中文词源

upright 直立的，挺直的

up,向上，right, 直的，词源同regulate, erect.

upright (adj.): Old English upriht "erect, face-upward;" see up (adv.) + right (adj.1). Similar compounds are found in other Germanic languages (Old Frisian upriucht, Middle Dutch oprecht, Old High German ufreht, German aufrecht, Old Norse uprettr). Figurative sense of "good, honest, adhering to rectitude" is first attested 1520s.

As an adverb, Old English uprihte. As a noun, 1560s in the sense "a vertical front;" c. 1700 as "a vertical timber in framing;" 1742 in the sense "something standing erect." Meaning "an upright piano" is from 1860.
THREE-PENNY UPRIGHT. A retailer of love, who, for the sum mentioned, dispenses her favours standing against a wall. ["Dictionary of the Vulgar Tongue," 1811]

The bent-over rear-entry posture they are talking about, of course, is kubda, the three-obol position at the bottom-end of a prostitute's price-range. [James N. Davidson, "Courtesans and Fishcakes: The Consuming Passions of Classical Athens," 1997]

1. 堂堂七尺男儿，站得端，立得正。

1. He was sitting on an upright chair beside his bed, reading.: 他正坐在床前一张直背椅上看书。

4. Moira sat stiffly upright in her straight-backed chair.: 莫伊拉直挺挺地坐在她的直背靠椅上。