If you press this button, the machine starts, If you heat water to 100°C, it boils., If it rains, the garden gets wet., If you heat ice, it melts., If you mix red and blue, you get purple., If you touch fire, you get burned., People die, if they don't eat., If babies are hungry,, they cry., Teachers get angry, if pupils don't do their homework., If you don't water the flowers, they die..

zero conditional

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恢復自動保存: ?