过去，天使公园每晚通常要用2百万加仑水，其用水量在过去15年间减少了一半。

Angel Park, which used to use almost 2 million gallons of water a night, has cut its water usage in half over the past 15 years.

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然后就好像在会议上作宣告一样，她宣称自己每个星期天都加入绿色天使小组，花两个小时去公园捡垃圾。

Then as in making an announcement at a conference, she declared that every Sunday she joins her Green Angles Group and spend two hours colleting litter in a park.

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