To start preparing only when the need arises, indicating a lack of foresight or being too late to act; to make weapons only when the battle is imminent.
项目快要截止了，你现在才开始收集资料，这不是斗而铸兵吗？
The project deadline is approaching, and you're just starting to gather materials now. Isn't that making weapons only when the battle is imminent?
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