你的認為是正確的.to adjust 相當于it,為真正賓語.
as 引導(dǎo)原因狀語從句時表示附帶說明的“雙方已知的原因”,語氣比since弱,較為正式,位置較為靈活(常放于主句之前).例如：As it is raining,you’d better take a taxi.既然在下雨,你最好乘出租汽車.// As you are tired,you had better rest.既然累了,你最好休息一下.// I went to bed early,as I was exhausted.我睡得早,因為我筋疲力盡了.
常放于主句之前,并不表明一定放在前面.