do a piece of homework 做一份家作
He showed how robots can recognize notes on a piece of homework and give it a score.
他演示了机器人是如何识别作业上的笔记并进行打分的。
Today I would like to talk to you guys and try to accumulate some more information about cultural differences because I have to do a piece of homework on cultural differences.
今天我想和伙计们谈谈，并想搜集更多的关于文化差异的信息。因为我必须完成一份关于文化差异的家庭作业。
Our homework last night was a piece of cake.
我们昨天晚上的家庭作业很容易。
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