# Speaker 0: [0.56s - 2.96s]
Copy makes it trivially easy to accidentally duplicate a Rust value that is actually a thin handle to a resource, resulting in null pointers. Just make a habit of avoiding it on exported wrappers. This can be a hard muscle memory to break since we usually want Copy wherever possible in normal Rust code.
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推动东北全面振兴，根基在实体经济，关键在科技创新，方向是产业升级。要做强特色产业，走出一条高质量发展、可持续振兴的新路子。
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