New words：

superior [su:'piəriə]
n.上级；上司
adj.优越的；更好的；占优势的；更胜一筹的

superior to 优于

Sample Sentences：

John was his direct superior.
He always does what his superiors tell him.

This car is superior to that one.
You're a very superior young woman.
This handbag is made of superior leather.

leather['leðə] n.皮革

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