1. announce vt. 宣布; 述说; 声称
例句：Please announce to the children that there will be no school this afternoon.
请通知孩子们今天下午不上课。

2. recovery n.恢复，复原; 重获
例句：An anonymous call led to the recovery of the stolen jewels.
一个匿名电话导致被盗珠宝失而复得。

3. require vt.需要; 要求; 想要
例句：If you require further information, you should consult the registrar
如果需要进一步了解信息，请咨询教务主任。

4. disease n.疾病; 弊端; 不安
例句：In 1967 a strange disease struck.
1967年发生了一场奇特的灾难。

5. vaccinate vt.给…接种疫苗
例句：Dogs must be vaccinated against distemper
狗必须接种犬瘟热疫苗。

6. urge vt.催促; 推进，驱策
例句：We will urge them to adhere to the Paris Agreement.
我们将敦促他们遵守巴黎协议。
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