慢速英语:Pulp from Plants Makes Packaging More Earth-Friendly

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1. protect vt. 保护，保卫; 贸易保护
例句：Game laws protect wild life.
狩猎法保护野生动物。

2. change vt.改变，变更; 交换
例句：People like to change things around to suit themselves.
人们喜欢改变周围的事物，使之适合自己。

3. retire vi.退休; 撤退; 后退
例句：He will retire from his job next year and take things easy.
他明年就要退休过轻松的生活了。

4. replace vt.代替; 替换
例句：We undertake to replace any product not up to the specifications.
产品不合规格，保证退换。

5. expand vt.扩张; 使…变大; 详述
例句：I want to expand the medical program and the recreation program.
我要扩充医药工作和康乐活动。