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重点讲解：
1. designate as 标示；把…定名为；称呼；
例句：We're going to designate this room as a no-smoking area.
我们准备把这个房间指定为禁烟区。
2. be involved in 卷入的；参与的；与…有密切关联的；
例句：So I'm involved in a different kind of campaign, to try to change enough minds to make it a new reality.
所以我参与了另外一种运动，试图改变足够多的观念来创造一种新的认知。
3. a herd of 兽群；畜群；
例句：A herd of elephants lolloped across the plains towards a watering hole.
一群大象缓慢而笨拙地穿过平原，朝水潭走去。
n. 母牛，母兽
vt. 恐吓
