值得欣慰的，虽然，人们看到了这个大问题，和几个公司也开始做一些工作，它与自动化专案优化技术。
Thankfully though, people have seen this as major problem and a few companies are starting to do something about it with automated AD optimization technologies.
从对话中我们知道，这两个人正在谈论一些工作，这些工作得在上午9点开始做，下午2点做完。
From the conversation we know that the two are talking about some work they will start at 9 o'clock in the morning and have to finish at 2 in the afternoon.
如果我们开始保持学校清洁，在清洁日就可以少做一些工作。
If we start keeping the school clean, there'll be less work to do on clean-up day.
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