They say it’s not just the amount that teenagers consume that‘s worrying them but also what they do when they’re drunk
问题描述：
They say it’s not just the amount that teenagers consume that‘s worrying them but also what they do when they’re drunk
翻译 尤其是“that‘s worrying them ”怎么翻译
答
他们表示年轻人(对酒的)消费量并不是他们忧虑的唯一愿意,更重要的是他们醉酒后的行为.
“that‘s worrying them ” 是"让他们忧虑的是"的意思
希望这可以解决你的疑惑:-)