# 你既然订了计划，就该照着去做。
Since have plant, you should do it as it is.
# 你既然感冒了，就早点儿回家休息吧。
Since you have could cold, you can go home and then rest.

不但/不仅... 而且/也/还
# 他不但会开汽车，而且还会维修。
he can not only dirve, but also repiar car.
#今天不但气温低, 风也很大.
weather is low as well as wind blows strong.
# 她不但会说日语，还会说英语。