Unverified80% confidenceDecision RuleTime unknown
国际象棋选'加重塑料子'(底部灌铅或加重)稳定不易碰倒,适合幼儿手部控制差的阶段;轻质空心棋子价格低但易碰翻打断对局
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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