1. Arrange an auxiliary cooking and heating source that can be used outside. One alternative is a portable camp stove with small cans of gas.
    放置一个备用的户外烹调和取暖用具，或者准备一个便携式露营灶和几小罐煤气。

2. In the sentence " The boy threw the ball " , the word " threw " is a verb.
    在“男孩扔球”这个句子中，“扔”是动词。