For all teens, clear rules such as curfews help them regulate themselves.

对所有的少年来说类似宵禁的明确的家规帮助他们规范自己。

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Regular communication between parents can go a long way toward creating a safe environment for all teens in a peer group.

家长之间经常保持沟通，可以为所有在一起玩的孩子创造一个安全的环境。

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These are actually trending for all teens, girls, which are not typical toy dolls that can be bought in any toy stores.

所有的青少年，女孩子都为之陷溺，它们并不是那种随随便便就能在玩具店里买到的玩具娃娃。

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"It's gone over well with teens, " said Mr. Keller, explaining that gum competes for space with all the other items teens are carrying, such as mobile devices and iPods.

WSJ: Wrigley, Other Gum Makers Seek to Stimulate Gum Sales

More to the point, studies have repeatedly shown that emergency contraception is safe for use by women of all ages, including teens.

CNN: Morning-after pill a boon for women

These three behaviors accounted for 57 percent of all the crashes in which teens were at least partially responsible during their first month of licensed driving.

FORBES: Study Shows When Teen Drivers Most Likely to Crash