黄先生的评论促使韩国幼儿园把木头筷子换成金属筷子。
Mr Hwang's comments encouraged South Korean kindergartens to swap wooden chopsticks for metal ones.
大部分筷子都用竹子和塑料制成，也有由金属、骨、象牙和各种木材制成的。
Chopsticks are most commonly made of bamboo or plastic, but are also made of metal, bone, ivory, and various types of wood.
韩国筷子通常都是用金属做的。
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