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首先要测试土壤含铅水平。
The first step is testing soil for lead.
youdao
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您的庭园设计应该测试作为景观设计的过程中您的土壤。
Your landscaper should test your soil as part of the landscape design process.
youdao
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您的庭园设计应该测试作为景观设计的过程中您的土壤。
Your landscaper should test your soil as part of the landscape design process.
youdao