1. They need to substantialise their plans and provide concrete evidence of their effectiveness.
他们需要使计划具体化，并提供其有效性的具体证据。

2. The government should take immediate action to substantialise their promises and deliver tangible results.
政府应该立即采取行动，使他们的承诺具体化，并取得实实在在的成果。

3. The company has been working hard to substantialise their ideas into viable products.
这家公司一直在努力将他们的想法实质化为可行的产品。