be·fore·hand
adverb/bɪˈfɔːhænd/
/bɪˈfɔːrhænd/
- earlier; before something else happens or is done
预先；事先 - two weeks/three days/a few hours beforehand
提前两星期／三天／几小时 - I wish we'd known about it beforehand.
要是我们预先知道这事就好了。 - He warned me beforehand what to expect.
他预先提醒过我这件事。
Oxford Collocations DictionaryBeforehand is used with these verbs:- know
Word OriginMiddle English (originally as two words): from before + hand; probably influenced by Old French avant main. - two weeks/three days/a few hours beforehand