1·Of course, the job requires delicate interactions with grieving family members who are often footing the bill for the cleanup.
当然，这项工作还需要同悲伤的受害者家属作细致的沟通，因为他们才是为清理费买单的人。
2·Therefore he laid a base course of crushed stone on top of a compact footing instead of the costly stone foundation.
因此他就在压紧的路基上铺碎石基层，而不使用造价很高的石块路基。