beforehand
/bɪˈfɔ:hænd; bɪ`fɔrˌhænd/ adv
1 in advance; in readiness; earlier 预先; 有准备地; 较早
I had made preparations beforehand. 我预先作了准备.
He warned me beforehand what to expect. 他预先提醒过我这件事.
We were aware of the problem beforehand. 我们事先就知道有这个问题.
2 ~ (with sth) early or too early 早; 过早
She is always beforehand with the rent, ie is ready to pay it before it is due. 她总是提前把租金准备好. Cf 参看 behindhand.