If you took blood from the veins of a day labourer while he was working, you would find it full of " fatigue toxins" and fatigue products.
如果你在一个日工工作时抽取他的静脉血液， 你会发现它充满了“疲劳毒素” 和疲劳产物。
Day labourer
原声例句
人性的优点
英语百科
Day labor 农民工
（重定向自Day labourer）
Day labor (or day labour in Commonwealth spelling) is work done where the worker is hired and paid one day at a time, with no promise that more work will be available in the future. It is a form of contingent work.
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