这项工作必须要铺上几层土和沙子，然后用重机器打压，为铺石打下坚实的地基，使内院能够抗腐蚀。
The job entails bringing in layers of soil and sand, then compacting it with heavy machines. It creates a strong foundation for your pavers and makes the patio resistant to erosion.
油井停产所需费用和精力会对公司资源造成巨大的消耗，因此这项工作必须要在油田停产后迅速完成。
The cost and effort put into decommissioning is a drain on company resources, yet must be carried out fairly quickly after the field has ceased production.
如果你想在一天之内完成这项文书工作，你就必须要埋头苦干了。
If you want to finish this documentary job, you have to keep your nose to the grindstone.
既然必须要做这项工作，我们就得采取一些措施来消除伤害。
Given that we have to do the job, we have to take some steps to negate the harm, Hasting told the newspapter.
既然必须要做这项工作，我们就得采取一些措施来消除伤害。
Given that we have to do the job, we have to take some steps to negate the harm, Hasting told the newspapter.
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