榨取 has two main uses: a literal sense of squeezing out liquid from something (like fruit or oilseeds), and a figurative sense of exploiting or extorting resources, money, or labor from people. The figurative meaning is more common at advanced levels — you'll see it in political or economic contexts (榨取剩余价值, 榨取民脂民膏). Be careful: the literal 'squeeze' sense overlaps with 挤, but 榨取 implies mechanical or forceful extraction, not just pressing.