Unconditional love, the type often seen between a mother and child, lights up the common and different brain areas, including the middle of the brain.

经常在母亲和孩子之间产生的那种无条件的爱可激活其共同的和不同的大脑区域，包括大脑的中部区域。

youdao

So right know it is basically a luxury or a middle class type of garment right now.

所以眼下它基本上属于一种奢侈品，或是中产阶级人群的服装面料。

youdao

This put them at a 20 per cent higher risk of developing heart disease and type 2 diabetes - the form that develops in middle-age and is often blamed on obesity.

这种基因会提高他们百分之二十的几率换上心脏病以及二型糖尿病，这些病症通常被认为是在中年时期由于肥胖所引发的。

youdao

Max was a middle-class boy who lived in another type of neighborhood, one perched between affluence and despair.

NEWYORKER: Ghosts

The Federal Air Marshal Service officially began in 1968 as the Federal Aviation Administration's Sky Marshal Program, and in the 1970s, extortion-type hijackings in the Middle East led to the deployment of some air marshals overseas.

CNN: STORY HIGHLIGHTS

This would subject the Middle East to the risk of a Chernobyl-type catastrophe.

ECONOMIST: Letters