信任是维持良好关系的基本要素。

Trust is a key ___element in maintaining good relationships.

在户外露营时，他感觉完全回到了自己的自然环境中。

When camping outdoors, he feels completely in his ___element.

黄金是一种不会与其他元素发生反应的贵金属。

Gold is a precious metal that doesn't react with other ___elements.

电热水壶的加热元件坏了，我需要买个新的。

The heating ___element in my electric kettle is broken, so I need to buy a new one.

邮递员不得不顶着恶劣天气送信。

The mailman had to deliver letters in the face of the ___elements.