beforehandadv.
英 bɪ'fɔːhænd | 美 bɪ'fɔrhænd
中文adv. 事先；预先\nadj. 提前的；预先准备好的
事先；预先
adj. 提前的；预先准备好的
词根词源
beforehand (adv., adj.)also before-hand, early 13c., from before + hand, which here is of uncertain signification, unless the original notion is payment in advance or something done before another\\'s hand does it. Hyphenated from 18c., one word from 19c.
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