如何理解to a point


Now China has solved the problem of food and clothing to a point where it has managed to feed its 1.3 billion people,22 percent of the world’s total population,with only 7 percent of the world’s cultivated land.

请教分析:

1)句中to a point 作何成分?作用?含义?

2)可否去掉to a point?


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