As for sb/sth (idiom) – Turning to the subject of someone or something.（至于，关于）
Examples: 1.As for the mayor, he can pay for his own dinner.
2.I will take care of the dishes, as for the garbage, can you please take it out?"
Speak out (on sth) (phrasal verb) – To speak one's mind; to say something frankly and directly.（毫无保留地说出，大胆说出）
Examples: 1.This law is wrong, and I intend to speak out on it until it is repealed.
2.He has the courage to speak out what he thinks right.
Accord with sth (phrasal verb) - To agree with or match up with something.（与一致，符合）
Examples: 1.His version of events does not accord with witnesses' statements.
2.Does this accord with what you heard?
A hidden agenda (idiom) - A secret reason for doing something.（隐藏的议程，别有用心的动机，另有所图）
Examples：1.The prime minister denied that the new visa requirements were part of a hidden agenda to reduce immigration.
2. I am sure that the chairman has a hidden agenda. I never did trust him anyway.
Be open to sth (idiom) – Be willing to consider something.（对……持开放态度，容许……）
Examples: 1.Ideas should be open to criticism.
2.I'm open to any reasonable suggestion.
