twofold
adj. 有两部分的，双重的；两倍的
adv. 双重地，两倍地
例句
The problem was twofold.
这个问题分两个部分。
《牛津词典》
Her original investment has increased twofold.
她原先的投资已经增加到两倍。
The reason for the interview is twofold: we want to find out what he can tell us, plus we also want to find out what condition he is in.
这一采访的原因有两个：我们既想看看他能告诉我们些什么，也想弄清他的处境如何。
《柯林斯英汉双解大词典》
