开头段句式：
outline population growth patterns
表示“呈……趋势：
exhibit positive growth
表示”上升“趋势：
The following decade would see a swell to...
swell to
continue a very stable climb with slight acceleration over the following forty years
upward trend
表示“不明显上升/变化”
the modest growth
in a gradual and unremarkable manner
表示”大约“：
roughly, approximately, about, close to, just about, around
表示”在XX增长后”：
after a slight lull
表示“达到”：
hit a population of
Its growth concludes at 1.1 billion in the year 2000
其它：
albeit at different rates
in the foreseeable future
