For which的意思

"For which" 是英語中的一個短語，用於引導一個從句，通常用於詢問或提及某個特定的事物或情況。它可以用來詢問原因、目的、結果、時間、地點、方式或對象。以下是一些例子：

1. 詢問原因：

   • "Why did you do that?" "For which reason did you do that?"

2. 詢問目的：

   • "What are you doing?" "For which purpose are you doing that?"

3. 詢問結果：

   • "The experiment was successful." "For which result was the experiment successful?"

4. 詢問時間：

   • "When are you leaving?" "For which time are you leaving?"

5. 詢問地點：

   • "Where is he going?" "For which place is he going?"

6. 詢問方式：

   • "How did you solve the problem?" "For which method did you solve the problem?"

7. 詢問對象：

   • "Who did you give the book to?" "For which person did you give the book?"

在以上例子中，"for which" 引導的從句用來詢問前面主句中提到的某個特定信息。在實際使用中，"for which" 通常用於比較正式或書面的語境中。在口語中，它可能會被更簡單的詞或短語替代，比如 "which"、"that"、"what" 或其他更隨意的表達方式。