1.invest vt.投资; 花费
例句：They intend to invest directly in shares
他们打算直接投资股票。

2.expand vt.扩张; 使…变大; 详述
例句：Engineers noticed that the pipes were not expanding as expected
工程师注意到管道并没有如预期那样膨胀。

3.innovation n.改革，创新; 新观念
例句：The vegetarian burger was an innovation which was rapidly exported to Britain.
素食汉堡是一种迅速传到了英国的新开发食品。

4.instead adv.反而; 代替，顶替; 反倒
例句：I should take my rest now instead of later.
我现在就得休息，而不是一会。

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