• n. 要求；規定；C大調音階中的第一音
• v. 做；干；學習；研究；進行；完成；解答；整理；算出；引起；行過
• aux. 助動詞（構成疑問句和否定句）；（代替動詞）；（用于加強語氣）
• vi. 行，足夠；生長
• n. （英）多（人名Dorothea和Dorothy的昵稱）
• n. （口語）事件；（主英國口語）詐騙；（主英國、新西蘭口語）宴會；（口語）必須做到的事情

來自PIE*dhe, 做，制造，放置，詞源同fact, theme.

do

do: [OE] Not surprisingly, do is a verb of great antiquity. It goes back to the Indo-European base *dhē- (source also of English deed and doom), which signified ‘place, put’. This sense remains uppermost in descendants such as Sanskrit dhāand Greek títhēmi (related to English theme), but a progression to ‘make, do’ shows itself in Latin facere (source of English fact and a host of other words) and West Germanic *dōn. ‘Make’ is now the central signification of English do, although traces of the earlier ‘put, place’ survive in such fossilized forms as don and doff, and ‘do someone to death’.

Other Germanic relatives include German tun and Dutch doen, but the Scandinavian languages have not adopted the verb, preferring instead for ‘do’ one which originally meant ‘make ready’ (Danish g?re, Swedish g?ra) and which is related to English gear.
=> deed, doom, fact, fashion, theme

do (v.)

Middle English do, first person singular of Old English don "make, act, perform, cause; to put, to place," from West Germanic *don (cognates: Old Saxon duan, Old Frisian dua, Dutch doen, Old High German tuon, German tun), from PIE root *dhe- "to put, place, do, make" (see factitious).

Use as an auxiliary began in Middle English. Periphrastic form in negative sentences ("They did not think") replaced the Old English negative particles ("Hie ne wendon"). Slang meaning "to do the sex act with or to" is from 1913. Expression do or die is attested from 1620s. Compare does, did, done.

do (n.)

first (and last) note of the diatonic scale, by 1754, from do, used as a substitution for ut (see gamut) for sonority's sake, first in Italy and Germany. U.S. slang do-re-mi "money" is from 1920s, probably a pun on dough in its slang sense of "cash."

1. Look, you've typed " do " as'so " , and made nonsense of the whole sentence.

瞧, 你把do打成了so, 這樣一來句子就不通了.

來自《簡明英漢詞典》

2. Beauty is an attitude. It has nothing to do with age.

美是一種態度，與年齡無關。

來自金山詞霸

3. The best thing to do when entering unknown territory is smile.

踏入未知地帶最好的對策就是微笑。

來自美劇《凱莉日記》

4. Failure is never quite so frightening as regret do.

比失敗更令人恐懼的是懊悔。

來自金山詞霸 每日一句

5. For what do we live, but to make sport for our neighbours, and laugh at them in our turn?

我們活著是為了什么？不就是給鄰居當笑柄，再反過來笑他們。

來自《傲慢與偏見》