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🗣️ 情景例句
Four will be good.
4只应该够。
I've got an slight in my chest.
我的胸口有点痛。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。