小而强，意味着整体结构更集成、制造难度更大。“就拿燃烧器来说，内部冷却结构复杂，G15的小身躯里，传统焊接工艺难以实现。”曹天兰思来想去。
posToTime.set(pos, time);
，详情可参考搜狗输入法2026
"We are also asking government to commit to reviewing service costs after a year, to help plug any costs gaps."
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习题链接：LeetCode 1475. 商品折扣后的最终价格