问题描述：
please translate the sentence exactly.thank you
BEIJING,Feb.6 — China said Tuesday that wealthier countries must take the lead in curbing greenhouse gas emissions and refused to say whether it would agree to any mandatory emissions limits that might hamper its booming economy.
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BEIJING,Feb.6 — China said Tuesday that wealthier countries must take the lead in curbing greenhouse gas emissions and refused to say whether it would agree to any mandatory emissions limits that might hamper its booming economy.
dnn't use machine!
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