His sudden change of opinion took his colleagues allaback.
他突然改变主张，使他的同事们都大吃一惊。
2
If I'm honest, I'm a little taken aback how you all but ignore me for two years then email me only when you need something.
坦白说，两年来你直接忽视我，现在有需要才主动联系的行为让我有点讶异。
3
Then, when you use them in real life, a normal person will react by immediately ceasing all hurtful behavior, and even mean people will be taken aback by your directness.