未知
A：I (never knew/ didn’t know/ would have never guessed) that.
我（从不知道/从未知晓/从未知道）这个。
B：Yeah, well it’s true.
是呀，可是是真的。
1. well up in : 精通；
2. pretty well : 几乎；
3. well and truly : 决定性地, 确实地；
4. as well : 也, 又；
5. may as well : 不妨；
6. just as well : 无妨；
7. well out of : 幸运地摆脱；