[文法] 同位語請教

[greenplant77 (john)]

我在2017年出版的一次通過新多益550分的書中，看到雙人對話有一題文法題覺得怪怪的，
想說請教板上各位。對話如下

W:Hello, Good Taste Restaurant. Gina Speaking. How many I help you?

M:Yes, hi there. My name is Josh Tobin. I've got a complaint about your
service. Yesterday my wife and I ate at your restaurant, and one of your
waiters, I think his name was Tony, was pretty rude to us.

W:I'm terribly sorry to hear that, Mr. Tobin. This is not typical of our
service, and I believe this is just an isolated case. We will certainly
enhance the training of our service personnel.

M:Okay, I surely hope so.

目前我知道綠色底是同位語句型，然而我比較有疑問的是有關紅色字的部份，
紅色字是完整的句子，為何沒有連接詞？

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※ 文章網址: https://www.ptt.cc/bbs/Eng-Class/M.1579319150.A.402.html
→ charli: 這是口語吧？而且上下用逗號分開，表示補充說明，指出Tony
→ charli: 大概就是那個waiter，不需要連接詞。把這句拿掉，也不影響
→ charli: 整句的意思。
※ 編輯: greenplant77 (114.46.79.240 臺灣), 01/18/2020 13:14:34
→ cuylerLin: 綠色哪來的同位語(?)
推 Lhanas: 紅色部分是插入語（parenthetical），有獨立句子的地位，
→ Lhanas: 語調上也有明確的界限與主句隔開，可以看成就像打了括弧
→ Lhanas: 一樣