根据短文内容及首字母提示，填写所缺单词。
Nylon (尼龙) 1. w______ invented in the early 1930s 2. b______ an American chemist, Julian Hill.
Nylon was introduced to the world. It was cheap and strong and immediately 3. b________ successful,
especially in the making of women's stockings.
During the Second World War (战争), the best present for many women was a pair of nylon
stockings, but more importantly, nylon was 4. u______ to make parachutes (降落伞) and tyres.
Today, nylon is found in many things: carpets, ropes, seatbelts, computer, furniture and so on.
It has 5. p______ an important role in our lives for over 50 years.
1.______ 2._____ 3.______ 4.______ 5.______

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