Mix concrete with an excavator, ten yuan per square

Use an excavator to mix concrete, ten yuan per square meter, do you think it is worthwhile?
Hello everyone, I am Master Chen
Young people don't work hard, grow up excavators.
Look up at the bright moon and look down at the excavator.
Chunmian didn't realize it, and woke up.
Master Chen excavator, only wax excavator
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院子那爛放子沒牆應拆了重砌，這樣水泥可用掉！