慢速英语:US Farmers, Farmworkers Concerned About Immigration Policies

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词汇讲解：

1.increase vt.增加，增大，增多
例句：The population continues to increase
人口继续增长。

2.immigration n.移居; 移民人数; 移民局检查站
例句：The government has decided to tighten its immigration policy.
政府决定实施更加严格的移民政策。

3.harvest vt.收割，收成
例句：It's still too early to harvest the wheat now.
现在收割小麦为时过早。

4.reduce  vt.减少; 缩小; 使还原; 使变弱
例句：It reduces the risks of heart disease
这降低了患心脏病的风险。

5.demonstrator n.游行示威者; 证明者，示范者
例句：I saw the police using tear gas to try and break up a crowd of demonstrators.
我看见警察正试图用催泪弹驱散一群示威者。

6.pick vt.挑选，挑拣; 挖，采
例句：Can you pick out the right one?
你能找出正确的那一个吗？