1. act 各自的和单一的行为，强调行为的结果,
Think well before you act.
要三思而后行。
2. action 整体的行为，常用在机械、物理用语中
Actions speak louder than words.
行动胜于空谈。
3. deed 较为庄重、显著、伟大而感人的行为，且具有持久性
We should be true in word and resolute in deed.
我们应该言必信，行必果。
4. agree on/upon 对……意见一致
The two sides failed to agree on every point but came to an accommodation.
双方并非在每一点上意见都一致, 但已达成和解.
5. agree to 同意，答应
To my disappointment, my father doesn't agree to buy me a new bike.
我父亲不同意给我买新脚踏车, 我很失望。
6. agree with 一致，赞同，（食物、气候等）适合
Saying and doing should agree with each other.
言行应该一致。