Notes:
unripe 未熟;
stem 茎;
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Did you know that you can get sick from eating potatoes? At one elementary school the other day, children got sick 30 minutes after eating unripe potatoes. They had grown the potatoes at their school and were cooking and eating them in class. Potatoes can be dangerous if they do not grow long enough, if they are still green, or if they are not cooked enough. The leaves and the stem should never be eaten because they contain a poison. Adults don’t really need to worry about store-bought potatoes, however. Those potatoes are ripe, and even the green ones contain so little poison that they aren’t dangerous. (by Prof. Douglas Jarrell)
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