She says actually getting her ROV to move through water well was not easy.
她说，能真正让她的遥控潜水器在水中顺畅移动并不容易。
Yet water rights do not provide an easy or quick fix to water shortages.
然而，水权并没有为水资源短缺提供一个简单快捷的解决办法。
Of course, it's not easy to keep your water cold during outdoor runs in the heat.
当然，在室外温度很高的情况下保持水低温不是件容易的事。
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