關代有一個省略用法是 The boy (who is)standing over there is my brother. Be 動詞後面若是現在或過去分詞即可連同關代省略 1. 但在同位語用法中 會看到有些人的解釋是 Mr. Lin, a lawyer, lives near my house. 中間的同位語即是省略who is 來的 但a lawyer 並非分詞，這樣解釋是可以的嗎? 2. 就算中間是分詞，也可以省略嗎? The Company, (which was)established in 1877, has been a leader in its field. 關代如果是非限定用法的話，關代應不能省略吧? 但在用成同位語用法卻可以省略變成 The Company, established in 1877, has been a leader in its field. 這兩個問題再麻煩大家解答了 謝謝