ladder

英 ['lædə] 美['lædɚ]

America's education system has become less a ladder of opportunity than a structure to transmit inequality from one generation to the next.

So what factors, at the community level, do predict if poor children will move up the economic ladder as adults? What explains, for instance, why the Salt Lake City metro area is one of the 100 largest metropolitan areas most likely to lift the fortunes of the poor and the Atlanta metro area is one of the least likely?Harvard economist Raj Chetty has pointed to economic and racial segregation, community density, the size of a community's middle class, the quality of schools, community religiosity, and family structure, which he calls the single strongest correlate of upward mobility.

It is better to start from the community to help poor children move up the social ladder.

A number of prominent economists have also argued that it's harder for the poor to climb the economic ladder today because the rungs（横档） in that ladder have grown farther apart.

A number of prominent economists have also argued that it's harder for the poor to climb the economic ladder today because the rungs (横档) in that ladder have grown farther apart.

So what factors, at the community level, do predict if poor children will move up the economic ladder as adults?

The same held true for people who used products that implied they were short on time: In one experiment, for example, customers of the grocery-delivery service Peapod were seen as of higher status than people who shopped at grocery stores that were equall

1. Her whole body began to buckle, unbalancing the ladder.: 她整个身体开始弯曲，搞得梯子倾侧起来。

2. Two men were on the bridge-deck, steadying a ladder.: 两名男子在船桥甲板上扶着一架梯子不让它摇晃。

3. We climbed rather perilously down a rope-ladder to the boat below.: 我们冒着相当大的危险沿着绳梯爬到了下面的船上。

4. Uncle George quickly descended the ladder and nimbly stepped aboard.: 乔治叔叔迅速爬下梯子，敏捷地上了船。