bulbs

US

UK

B1 中級
n. pl.名詞 (複數)燈泡
Energy-saving bulbs cost a little more, but use less electricity
n. pl.名詞 (複數)球莖;球根
Lily flower bulbs must be planted in the spring

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碳交易的故事 (The Story of Cap & Trade)

09:56碳交易的故事 (The Story of Cap & Trade)