upward mobility 階層流動(dòng)（向上流動(dòng)）

upward economic mobility

offer one-on-one training sessions

shed pounds/get ripped

behind...is a deeper purpose

at risk of poverty

forge friendship

wealthier people//well-to-do client

give...a helping hand

recruit

be economically disadvantaged

disadvantaged background

fresh out of prison

offer...a pathway to become

pair...with

be seeing amazing results with...

value is going both ways

it pays to have friends in high places

a groundbreaking research

substantiate sth

in a profound way

low-income folks

cross class line

climb the economic ladder

cross-class friendship

climb out of poverty

rising out of poverty

be crucial for

sb is the closest thing we have to sb in the...world

econ world

crunch gigantic data sets

compelling evidence

direct evidence

some years back

why it looks the way it does

have a much better shot of

along the way

social capital

generally refer to

have long found that

give...a boost economically

have thought hard about these issues

have been hampered by a lack of data

who would have thought...years ago that

economic connectedness

level of inequality

shape sb's aspiration

self-presentation

on aeverage

boil down to two main thing

bump into

rec center

friending bias

stay in their own cliques

prime example

friendship thrive

as opposed to

the structure of institutions

govern bias

diverse social circles

revitalize american dream

building affordable housing

think deliberately

foster friendship

shout out sth

nonprofit gym

sth has been operating for over a decade

showing a lot of signs of sucess

lower rates of recidivism

day-to-day interactions

the biggest successes we see in this organization - it's our trainers having conversations with someone who they might not otherwise cross paths with and vice versa

electrician school