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来源:雅诚德英语网
Doctors knew that nicotine was addictive, and they had ways to treat the addiction.
医生们都知道尼古丁有成瘾性,也有治疗的良策。
Doctors knew that nicotine was addictive, and they had ways to treat the addiction.
医生们都知道尼古丁有成瘾性,也有治疗的良策。