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from the bottom up从下到上
例句：The job will have to be done all over again from the bottom up.
这件工作还得从头重新做。
2.Barack Obama made it clear that if Africa wanted to be treated fairly on the international stage, it had to get its own house in order.
make it clear表明，讲明
例句：We have make it clear that agriculture is the foundation of the national economy.
我们已经讲明农业是国民经济的基础。
in order整齐, 状况良好, 适宜
例句：Everything is in order.
一切都准备好了。
3.I think each African leader, myself included, would be charged to rise for the challenge as to what is good governance and that means,……
as to关于, 至于
例句：We quarreled over the question as to who invented acupuncture.
我们在是谁发明了针灸的问题上，意见不合。
4.Some protesters threw stones and broke through barricades to obstruct the car park entrance.
break through突围, 突破
例句：You should be resolute enough to break through these regulations and restrictions.
你做事情要敢于冲破这些条条杠杠。
5. The shuttle had been due to take off on a 2-week mission to the International Space Station.
due to应该
例句：The plane is due to arrive at 12.15.
飞机预定12点15分抵达。