alone: [13] Although partly disguised by its pronunciation, alone is in fact simply a compound of all and one (whose /wun/ pronunciation began to develop around the 15th century). In Old English it was a completely separate phrase, all āna, literally ‘completely by oneself’, but by the 13th century this had coalesced into a single word. Loss of its initial ain the 14th century gave rise to the adjective lone. => all, lone, one
alone (adj., adv.)
c. 1300 contraction of all ane, from Old English all ana "unaccompanied, all by oneself," from all "all, wholly" (see all) + an "one" (see one). Similar compounds are found in German (allein) and Dutch (alleen).
雙語例句
1. If you're lonely when you're alone, you're in bad company.--Jean Paul Sartre
如果你獨(dú)處時(shí)感到寂寞，說明沒有把自己陪好。
來自金山詞霸 每日一句
2. Don't leave a child alone in a room with an open fire.
房間里有裸露的明火時(shí)，不要讓孩子獨(dú)處其中。
來自柯林斯例句
3. He knew when to leave well alone and when to interfere.
他知道什么時(shí)候該適可而止，什么時(shí)候該插手干預(yù)。
來自柯林斯例句
4. He had always been an outcast, unwanted and alone.
他一直都被視為異類，無人理睬，形單影只。
來自柯林斯例句
5. He was working alone and did not have an accomplice.