New words：

renew [ri'nju:] v.更新；更换；重新开始；中止后继续

Sample Sentences：

Spring renews the earth.
He renewed the book for another two months.
The most important thing is to renew your health.
I came back from my holiday with renewed strength.

strength [streŋθ] n.强度；力量；实力；力气；体力

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