本期内容：

A new law in the United States that prohibits the sale of tobacco products to anyone under the age of 21 is now in effect, according to the US Food and Drug Administration.
Last week, President Donald Trump signed the new minimum age into law as part of a sweeping spending bill.
On Friday, the FDA noted on its website that "it is now illegal for a retailer to sell any tobacco product -- including cigarettes, cigars and e-cigarettes -- to anyone under 21.

in effect: 实施，实行
sign sth. into law: 把……写进宪法
(if someone in authority signs something into law, they make it part of the law by signing an official document)
minimum adj. 最小的；最低限度的
• maximum adj. 最大的，最高的
sweeping adj. 影响广泛的；大幅度的
• sweeping changes: 大刀阔斧的改革
• sweeping economic reforms: 全面的经济改革
note vi. 指出；留意


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