Though habilis stood no more than a metre tall,尽管能人站立身高不到1米

no more than不过； 仅仅

It will take no more than five days to read the book.

不到五天，我就会把这本书读完。

Though they think it takes no more than three days to fulfill the mission, I believe it takes not

less than six days.

虽然他们认为完成这任务只需三天，但我却认为至少需要六天。

and that set everything off in the director of modern humans.从而确定了进化成当代人类的主要演变趋势

set off点燃；引起

Do be careful with those fireworks; the slightest spark could set them off.

这些烟火要格外小心，稍有火星就能引起爆炸。

Could eating meat really have caused us to evolve?难道真是食肉让我们得以进化

cause to导致,造成,带来

The bad weather conspire with some other unpleasant cause to ruin our picnic.

坏天气加上其他一些不愉快原因使我们的野餐令人大为扫兴。