[文法] 消失的連接詞

[AFM (原子力顯微鏡)]

Among his militant names is Laaouar, or the One-Eyed, because it is said he
may have lost an eye while fighting the Soviets in Afghanistan, where he
learned combat skills. A major cigarette trafficker, he is also known as
Marlboro Man. Mr. Belmokhtar became a leading figure in Al Qaeda in the
Islamic Maghreb, or A.Q.I.M., the Qaeda affiliate in North Africa.

請問第三行，A major cigarette trafficker為何不必在句首加As
這樣兩句不就沒有連接詞
還是說　一個主要的香菸商人　整句是he的補語?

另外，為何 Marlboro Man 前面不用加a? 不是類似比喻的用法嗎 ?


感謝先進解惑～

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→ kaifrankwind: 1. 同位語 2. Superman或Batman也不會加冠詞
→ AFM: 謝謝。