1.disposable income n.可支配收入，税后所得

Steady growth in disposable income is far from assured.
可支配收入很难说一定会稳定增长。

But the macroeconomic downside has been less disposable income.
但在宏观经济层面上，居民可支配收入却有所下降。

2.built on添建

But its wealth built on the backs of slaves.
但这笔财富却是建立在奴隶的血汗之上的。

Built on a swamp, lagos is fighting for survival.
拉格斯建在沼泽之上，它是在努力存活下来。

3.pick up 捡起；得到；学会

Yet occupancy and rental rates have started to pick up for prime properties.
不过，高档商业地产的入住率和租金水平都已开始回升。

But global investment started to pick up in 2003 as asian countries ploughed more money into infrastructure.
但由于亚洲各国将更多资金投入基建，全球投资在2003年又开始有所回升。