What is intended by the word mean, meaning, etc. in the following examples, reference (R) or sense (S)? 请在括号中用大写字母 R 或 S 标出。 When Helen mentioned "the fruit cake", she meant that rock-hard object in the middle of the table. ( ) When Albert talks about "his former friend", he means me. ( ) Daddy, what does unique mean? ( ) Purchase has the same meaning as buy. ( ) Look up the meaning of apoplexy in your dictionary. ( ) If you look out of the window now, you'll see who I mean. ( )