Unverified80% confidenceDecision RuleTime unknown
选购木质积木时优先选榉木、桦木等硬质木材，密度高、不易开裂起刺；松木等软木便宜但边角易磕碰变形、久用起毛刺伤手
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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