1.The British study showed that children who are looked after by their grandparents tend to me more overweight.
tend to 趋向;偏重
We tend to meet up for lunch once a week.
我们往往每周共进一次午餐 。
2.The research also showed that children of richer parents were more at risk, especially if the mother had a management position and/or a university education.
at risk有危险
The crisis could well place the relationship at risk.
这场危机可能会使这一关系有破裂的危险 。
3.It might also be that British people in general are becoming less active.
in general通常;大体上;一般而言
In general, incumbents have a 94 per cent chance of being reelected.
通常现任官员有94%的几率会再次当选 。