decide和determine都是表示“決定”。在語氣方面，determine比decide要更堅定。在用法上區別不大，具體如下：

decide on/to do

determine on/to do

be determined to do

類似表達還有：

make up one's mind to

make a decision

They decided to break up.

他們決定分手了。

We have reached a decision.

我們已經做出了決定。

I made up my mind to study hard and win a scholarship this year.

我決定今年好好學習獲得獎學金。

What have you decided?

你做了什么決定？

I've decided to study abroad.

我已經決定去國外學習了。

I will back you up no matter what you decide.

不管你做什么決定，我都支持你。

I can't make a decision without knowing the facts.

在不了解事實的情況下，我不能做出決定。

經典對話

A: The summer vacation is coming up. Do you have any plans?

暑假就快要到了，你有什么計劃嗎？

B: I haven't decided yet, but my parents want to travel to Mexico this summer and they want me to go with them.

我還沒有決定好，不過我父母想在這個夏天去墨西哥旅游，他們想讓我跟他們一起去。

A: That's a good thing. You can take advantage of this holiday to relax for getting better results next year.

那是好事啊，你可以利用這個假期好好放松一下，以備明年取得更好的成績。

take advantage of...表示“利用”，take good advantage of..表示“好好利用”，take full advantage of表示“充分利用”

B: Yes, I think so too. How about you? Have you made any decisions yet?

是的，我也這樣想你呢，已經做了什么決定嗎？

A: Well, I have decided to travel to Europe this summer holiday.

是的，我已經決定在這個暑假去歐洲游。

B: Alone?

你一個人嗎？

A: I would like that very much. But my parents feel worried about me, so I have to go with my classmates.

我很想這樣，但是我父母不放心，所以我只能跟同學一起去了。

B: Your parents are right, it's safer.

你父母很對，這樣比較安全。

A: Yeah, anyway, I'm glad I can visit Europe this time.

是的，不管怎么樣，我還是很高興這次能去歐洲旅游的。

B: I know this is your dream all along. I'm so happy for you.

我知道這是你一直以來的夢想，真替你高興。

all along表示“自始至終”，相當于all the time

A: Thank you, and I've planned my routes. I'll travel through all the countries I like, especially Britain, Germany, the Netherlands and France.

謝謝，而且我已經計劃好了路線，我會把我喜歡的國家都逛一遍，尤其是英國，德國，荷蘭和法國。

B: Good idea. Well, I've decided I'm going to travel to Europe with you. I think it'll be more interesting.

好主意。好了，我已經決定了，我要跟你一起去歐洲旅游，我覺得這樣會更有趣。

A: Okay. Welcome to join us. But you will have to talk to your parents first.

好啊，歡迎加入我們，不過你還是先跟你父母商量一下。

B: I know, I'll tell them tonight.

我知道，我今晚就跟他們說。

A: Alright. I wait for your good news.

好的，等你的好消息。