• adv. 起來(lái)；上漲；向上
• prep. 在…之上；向…的較高處
• adj. 漲的；起床的；向上的
• n. 上升；繁榮

來(lái)自PIE*upo, 在下面，從下往上，向上，詞源同sub-, over.

up

up: [OE] Up is part of a widespread family of Germanic adverbs which also includes German auf, Dutch and Danish op, and Swedish upp. It goes back ultimately to Indo-European *up-, which also produced English over and the prefixes hyper- and super- and may lie behind English evil. To open something is etymologically to put it ‘up’.
=> open, over

up (adv.)

Old English up, uppe, from Proto-Germanic *upp- "up" (cognates: Old Frisian, Old Saxon up "up, upward," Old Norse upp; Danish, Dutch op; Old High German uf, German auf "up"; Gothic iup "up, upward," uf "on, upon, under;" Old High German oba, German ob "over, above, on, upon"), from PIE root *upo "up from below" (cognates: Sanskrit upa "near, under, up to, on," Greek hypo "under, below," Latin sub "under;" see sub-).

As a preposition, "to a higher place" from c. 1500; also "along, through" (1510s), "toward" (1590s). Often used elliptically for go up, come up, rise up, etc. Up the river "in jail" first recorded 1891, originally in reference to Sing Sing, which is up the Hudson from New York City. To drive someone up the wall (1951) is from the notion of the behavior of lunatics or caged animals. Insulting retort up yours (scil. ass) attested by late 19c.

up (v.)

1550s, "to drive and catch (swans)," from up (adv.). Intransitive meaning "get up, rise to one's feet" (as in up and leave) is recorded from 1640s. Sense of "to move upward" is recorded from 1737. Meaning "increase" (as in up the price of oil) is attested from 1915. Compare Old English verb uppian "to rise up, swell." Related: Upped; upping. Upping block is attested from 1796.

up (n.)

"that which is up," 1530s, from up (adv.). Phrase on the up-(and-up) "honest, straightforward" first attested 1863, American English.

up (adj.)

c. 1300, "dwelling inland or upland," from up (adv.). Meaning "going up" is from 1784. From 1815 as "excited, exhilarated, happy," hence "enthusiastic, optimistic." Up-and-coming "promising" is from 1848. Musical up-tempo (adj.) is recorded from 1948.

1. When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

當(dāng)生活很艱難，你想要放棄的時(shí)候，請(qǐng)記住，生活充滿了起起落落，如果沒(méi)有低谷，那站在高處也失去了意義。

來(lái)自

2. The turning point in the process of growing up is when you discover the core of strength within you that survives all hurt.

當(dāng)你從內(nèi)心深處找到一種可以忍受一切痛苦的堅(jiān)強(qiáng)力量時(shí)，你的成長(zhǎng)歷程就會(huì)出現(xiàn)飛躍。

來(lái)自金山詞霸 每日一句

3. He finished his conversation and stood up, looking straight at me.

他說(shuō)完話站起來(lái)，直視著我。

來(lái)自柯林斯例句

4. These files have been zipped up to take up less disk space.

這些文檔已經(jīng)進(jìn)行了壓縮，以節(jié)省磁盤空間。

來(lái)自柯林斯例句

5. He was fired from his job after roughing up a colleague.

他因?yàn)閷?duì)一位同事動(dòng)粗而被開(kāi)除了。

來(lái)自柯林斯例句