Then boil or steam until tender, about 30-45 minutes.Drain.

然后用30 - 40分的时间煮熟或蒸熟，知道变软。

youdao

Bring to a boil, reduce the heat, and simmer, partially covered, until tender, about 45 minutes.

用水煮，降低温度，慢煮，直到变嫩，大概需要45分钟。

youdao

Bring to boil, reduce heat and simmer for 10 minutes or until carrots are tender.

煮滚，小火煨煮10分钟或直到胡萝卜变软。

youdao

Add the corn and boil until tender, about 10 minutes.

NPR: Recipe: 'Inspired by Ingredients'

Bring to a boil, then reduce the heat, and simmer for about 1 hour or until tender.

NPR: Recipes: 'Vefa's Kitchen'

Put them in a saucepan with lightly salted water to cover, bring to a boil over high heat, reduce the heat to low, and simmer until the leeks are very tender, about 20 minutes.

CNN: Keftes de Prasa (Leek Fritters)