n. the most favorable environment for a plant or animal
n. one of four substances thought in ancient and medieval cosmology to constitute the physical universe
n. the situation in which you are happiest and most effective
n. a straight line that generates a cylinder or cone
n. 元件, 元素, 要素
[计] 部分; 成分; 单元; 码元; 元件; 元素; 单元
1. Water is an essential element for all living things.
水是所有生物不可或缺的元素。
2. The periodic table shows all known chemical elements.
元素周期表展示了所有已知的化学元素。
3. Trust is an important element in a successful relationship.
信任是成功关系中的一个重要元素。