1.opposition to 反對
He reiterated his opposition to the creation of a central bank.
他重申了他對創辦中央銀行的反對。
2.rest on 依靠
His argument does not rest on reasoning or on experiment, but on authority.
他的論點不是依靠推理或者實驗,而是靠權威。
3.leading authority 權威;泰斗
This old man is a leading authority on wheat diseases.
這位老人是小麥病蟲害方面的權威。