New Words：

precious [ˈpreʃəs] adj. 珍奇的；珍稀的；宝贵的；珍贵的

Sample Sentences：

Don't waste your precious life in doubts and fears.
The crown was set with precious jewels─diamonds, rubies and emeralds.

jewel [ˈdʒuːəl] n. 宝石；珠宝
diamond [ˈdaɪəmənd] n. 钻石；金刚石
ruby [ˈrubi] n. 红宝石；深红色
emerald [ˈemərəld] n. 翡翠；祖母绿；绿宝石；翡翠绿
jewelry [ˈdʒuːəlri] [美] n. 珠宝；首饰；珠宝饰品
jewellery [ˈdʒuːəlri] [英] n. 珠宝；首饰；珠宝饰品

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