speak in的音标为[ɪn] 。它的意思是“用某种语言说话；在…发言；以…的口音说话”。用法示例：He speaks in English in public.（他在公共场合用英语发言。）

speak in的意思是“用某种语言说话；在梦中说话；用含糊不清的声音说话”。

用法：speak in 后面一般接介词短语，表示说话的内容。

双语翻译：

1. Speak in French if you like. (如果你愿意的话，可以用法语说话。)

2. She often speaks in a dream. (她经常在梦中说话。)

常见用法：speak in public (在公共场合发言)，speak in a whisper (用低沉的声音说话)。

例如：He was nervous and could hardly speak in public. (他很紧张，几乎无法在公共场合发言。)

speak in的意思是“用某种语言说话”、“在…发言”、“以…语发言”。

用法：speak in 后面通常接某种语言。

双语翻译举例：

1. She speaks in French to her friends.

她用法语和朋友交谈。

2. He spoke in Spanish at the meeting.

他在会议上用西班牙语发言。

常见短语：

1. speak in public 在公共场合发言

2. speak up 勇敢地说出

3. speak one's mind 说出自己的想法

4. speak to sb 对某人说

5. speak of sb 谈论某人

6. speak up for sb 为某人辩护

7. speak out 勇敢地说出真相

8. speak in rhyme 用押韵的方式表达

9. speak ill of sb 说某人的坏话

10. speak with one's heart 心里想说什么就说什么。