"工程未动,造价先行" (meaning "construction has not yet started, but costs have already been incurred") is a common saying in the construction industry, referring to the fact that costs can start to accumulate even before actual construction work begins. These costs can include things like design fees, site preparation, and obtaining necessary permits and approvals.

In terms of who might be suitable for training on construction costs, it could be useful for a variety of people involved in the construction industry, including project managers, estimators, architects, engineers, and construction professionals. It may also be beneficial for owners or developers who are responsible for managing the budget and costs of a construction project. Additionally, anyone who is interested in learning more about how construction costs are calculated and managed could benefit from this type of training.