1. He knew right off that something was wrong.
他立刻就知道出问题了。

2. She answered the question right off without thinking.
她不假思索地立刻回答了问题。

3. I can’t tell you right off; I need to check first.
我不能马上告诉你，需要先确认。

4. Right off, he decided to join the team.
他立刻决定加入团队。

A: Did you understand the instructions right off?
A：你一开始就理解这些说明了吗？

B: Yes, I got it right off the bat.
B：是的，我一开始就明白了。

1) 立刻、马上（口语常用）

2) 不加思考地迅速反应

3) 在某事开始时就发生

1. 立即；马上

e.g. He recognized her right off.
他立刻认出了她。

2. 不假思索地

e.g. She agreed right off to help us.
她马上同意帮助我们。

3. 一开始就

e.g. Right off, he seemed confident.
一开始，他看起来就很自信。

adverb phrase

1. Immediately; without delay or hesitation.

Synonym: immediately, instantly